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Shells that tell a story: Dr. Dinazard Raheem on Sri Lanka’s Ancient and Endangered Snails

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Special tribute to Dr. Jane Goodall and a minute of silence

At first glance, a snail’s shell might seem like nothing more than a spiral of silence — a tiny relic abandoned on the forest floor. But for Dr. Dinazard Raheem, these delicate coils hold the story of an island’s past, its changing climate, and perhaps even its future.

Addressing the Nations Trust–Wildlife and Nature Protection Society (WNPS) recent monthly lecture held at the BMICH, Dr. Raheem, one of Sri Lanka’s leading malacologists, took her audience on an extraordinary journey — from the island’s misty montane forests to the fossil beds of ancient continents — tracing the hidden history and fragile survival of land snails.

“Something that is really useful about snails,” she explained, “is that they have this calcium carbonate shell, which remains in the environment long after the animal has died. These shells are incredibly powerful tools — they allow us to detect species even when the live snails aren’t active.”

Dinazard making her presentation

Past President Sriyan de Silva Wijeyeratne on Dr Jane Goodall

When the weather dries up, live snails retreat into the soil, vanishing without a trace. But their shells endure, sometimes for decades. “You can still detect the presence of a species in a place simply because you’ve found its shell,” she said, showing slides of shells in various stages of decay — from freshly dead to almost crystalline. “By the time you see that internal structure, the calcium carbonate superstructure, you’re literally looking at the architecture of time.

Fossils in Amber and the Story of Gondwana

Land snails, Dr. Raheem explained, are far from humble creatures of the undergrowth. They are evolutionary timekeepers. “Unlike many other animal groups, some land snail families have incredibly rich fossil records,” she noted. “In Sri Lanka, the Cyclophoridians are a great example — a group represented here by living species, but whose fossils go back millions of years.”

Holding up images of Cyclophorus and Tortulosa fossils from northern Vietnam, she pointed out that these ancient shells were dated to 23 million years ago. “And even more astonishing,” she added, “there’s a tiny land snail preserved in amber from the mid-Cretaceous — around 99 million years ago. So when we study snails, we’re looking at life forms that have survived through deep time.”

The patterns of their distribution tell an even grander story — the breakup of Gondwana, the prehistoric supercontinent that once united Africa, South America, Madagascar, India, Sri Lanka, and Australia.

Dr. Rohan Pethiyagoda handing over a token of appreciation

“The Akavadi snails, like Acavus and Oligospira, are classic Gondwanan groups,” said Dr. Raheem. “They’re found only in the southern continents — South America, Africa, Madagascar, Sri Lanka, and Australia. Their distribution reflects a shared ancient history, before these landmasses drifted apart.”

A Rich, Endemic, and Vanishing Heritage

Sri Lanka today harbours 238 described land snail species, an astonishing 90 percent of which are found nowhere else on Earth. “It’s one of the highest levels of endemism in any island fauna,” she said. “For such a small island, that’s remarkable.”

The majority of these species are concentrated in the wet and intermediate zones, particularly in the lowland and montane rainforests. Yet, these are also the areas most at risk from deforestation and climate change.

“The wet zone covers less than 20 percent of the island’s land area — about 13,000 square kilometres — but it contains over 75 percent of our endemic species,” Dr. Raheem explained. “That’s where the richness lies, and it’s also where the threats are greatest.”

She warned that even the so-called “wet” areas are beginning to dry. “Some of the sites I’ve been studying seem to be getting drier,” she told the audience. “People who live near forest patches say the same. What we might be seeing is a slow drying trend — and that has major implications for species distributions.”

Science, Shells, and a Young Collector

Dr. Raheem’s fascination with snails began early — in her school years — and later blossomed into a lifelong pursuit of scientific discovery. While studying at Imperial College, London, she spent Wednesday afternoons in the Mollusca Collections of the Natural History Museum, given a set of keys and full access to the archives.

“I was incredibly lucky,” she recalled. “The Natural History Museum in London holds nearly 80 percent of the type specimens for South Asian snail species — the original reference material used when these species were first described.”

For anyone working on tropical land snails, she said, those historic specimens are the foundation of modern taxonomy. “You can’t know what you’ve found unless you can compare it to the original types,” she explained. “That’s how we set the baseline.”

Her research has also been tied deeply to Sri Lanka. In the 1990s, she returned to the island to take part in a landmark field survey funded by the Darwin Initiative. Over 24 months, her team conducted systematic sampling at more than 250 forest sites across the island — from the southern rainforests to the highlands of Uva.

“It was transformative,” she said. “We generated the first modern distributional maps for many species and established reference collections at the Colombo Museum and the University of Peradeniya. That work showed us just how little we knew — and how much there was still to discover.”

Tiny Sentinels of Environmental Change

Land snails, she reminded the audience, are not only ancient survivors — they are also modern sentinels of ecological change.

“They’re incredibly sensitive to microclimate — humidity, temperature, and forest structure,” she said. “When those change, snails are often the first to disappear. So by studying them, we can track the health of entire ecosystems.”

She also cautioned about invasive species such as the golden apple snail, which has spread rapidly across the island since the 1990s. “The golden apple snail is an absolute menace,” she warned. “At first, there were just a few colonies, but now it’s everywhere. They can devastate wetlands and paddy fields.”

Still, Dr. Raheem’s talk was as much a celebration as a warning — a reminder that Sri Lanka’s smallest creatures hold some of its largest scientific secrets.

“Snails may not be glamorous,” she said with a smile, “but they tell us extraordinary stories — about the age of our forests, the history of our planet, and the changes that are happening right now, beneath.”

By Ifham Nizam



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Challenges faced by the media in South Asia in fostering regionalism

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Main speaker Roman Gautam (R) and Executive Director, RCSS, Ambassador (Retd) Ravinatha Aryasinha.

SAARC or the South Asian Association for Regional Cooperation has been declared ‘dead’ by some sections in South Asia and the idea seems to be catching on. Over the years the evidence seems to have been building that this is so, but a matter that requires thorough probing is whether the media in South Asia, given the vital part it could play in fostering regional amity, has had a role too in bringing about SAARC’s apparent demise.

That South Asian governments have had a hand in the ‘SAARC debacle’ is plain to see. For example, it is beyond doubt that the India-Pakistan rivalry has invariably got in the way, particularly over the past 15 years or thereabouts, of the Indian and Pakistani governments sitting at the negotiating table and in a spirit of reconciliation resolving the vexatious issues growing out of the SAARC exercise. The inaction had a paralyzing effect on the organization.

Unfortunately the rest of South Asian governments too have not seen it to be in the collective interest of the region to explore ways of jump-starting the SAARC process and sustaining it. That is, a lack of statesmanship on the part of the SAARC Eight is clearly in evidence. Narrow national interests have been allowed to hijack and derail the cooperative process that ought to be at the heart of the SAARC initiative.

However, a dimension that has hitherto gone comparatively unaddressed is the largely negative role sections of the media in the SAARC region could play in debilitating regional cooperation and amity. We had some thought-provoking ‘takes’ on this question recently from Roman Gautam, the editor of ‘Himal Southasian’.

Gautam was delivering the third of talks on February 2nd in the RCSS Strategic Dialogue Series under the aegis of the Regional Centre for Strategic Studies, Colombo, at the latter’s conference hall. The forum was ably presided over by RCSS Executive Director and Ambassador (Retd.) Ravinatha Aryasinha who, among other things, ensured lively participation on the part of the attendees at the Q&A which followed the main presentation. The talk was titled, ‘Where does the media stand in connecting (or dividing) Southasia?’.

Gautam singled out those sections of the Indian media that are tamely subservient to Indian governments, including those that are professedly independent, for the glaring lack of, among other things, regionalism or collective amity within South Asia. These sections of the media, it was pointed out, pander easily to the narratives framed by the Indian centre on developments in the region and fall easy prey, as it were, to the nationalist forces that are supportive of the latter. Consequently, divisive forces within the region receive a boost which is hugely detrimental to regional cooperation.

Two cases in point, Gautam pointed out, were the recent political upheavals in Nepal and Bangladesh. In each of these cases stray opinions favorable to India voiced by a few participants in the relevant protests were clung on to by sections of the Indian media covering these trouble spots. In the case of Nepal, to consider one example, a young protester’s single comment to the effect that Nepal too needed a firm leader like Indian Prime Minister Narendra Modi was seized upon by the Indian media and fed to audiences at home in a sensational, exaggerated fashion. No effort was made by the Indian media to canvass more opinions on this matter or to extensively research the issue.

In the case of Bangladesh, widely held rumours that the Hindus in the country were being hunted and killed, pogrom fashion, and that the crisis was all about this was propagated by the relevant sections of the Indian media. This was a clear pandering to religious extremist sentiment in India. Once again, essentially hearsay stories were given prominence with hardly any effort at understanding what the crisis was really all about. There is no doubt that anti-Muslim sentiment in India would have been further fueled.

Gautam was of the view that, in the main, it is fear of victimization of the relevant sections of the media by the Indian centre and anxiety over financial reprisals and like punitive measures by the latter that prompted the media to frame their narratives in these terms. It is important to keep in mind these ‘structures’ within which the Indian media works, we were told. The issue in other words, is a question of the media completely subjugating themselves to the ruling powers.

Basically, the need for financial survival on the part of the Indian media, it was pointed out, prompted it to subscribe to the prejudices and partialities of the Indian centre. A failure to abide by the official line could spell financial ruin for the media.

A principal question that occurred to this columnist was whether the ‘Indian media’ referred to by Gautam referred to the totality of the Indian media or whether he had in mind some divisive, chauvinistic and narrow-based elements within it. If the latter is the case it would not be fair to generalize one’s comments to cover the entirety of the Indian media. Nevertheless, it is a matter for further research.

However, an overall point made by the speaker that as a result of the above referred to negative media practices South Asian regionalism has suffered badly needs to be taken. Certainly, as matters stand currently, there is a very real information gap about South Asian realities among South Asian publics and harmful media practices account considerably for such ignorance which gets in the way of South Asian cooperation and amity.

Moreover, divisive, chauvinistic media are widespread and active in South Asia. Sri Lanka has a fair share of this species of media and the latter are not doing the country any good, leave alone the region. All in all, the democratic spirit has gone well into decline all over the region.

The above is a huge problem that needs to be managed reflectively by democratic rulers and their allied publics in South Asia and the region’s more enlightened media could play a constructive role in taking up this challenge. The latter need to take the initiative to come together and deliberate on the questions at hand. To succeed in such efforts they do not need the backing of governments. What is of paramount importance is the vision and grit to go the extra mile.

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When the Wetland spoke after dusk

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Environmental groups and representatives

By Ifham Nizam

As the sun softened over Colombo and the city’s familiar noise began to loosen its grip, the Beddagana Wetland Park prepared for its quieter hour — the hour when wetlands speak in their own language.

World Wetlands Day was marked a little early this year, but time felt irrelevant at Beddagana. Nature lovers, students, scientists and seekers gathered not for a ceremony, but for listening. Partnering with Park authorities, Dilmah Conservation opened the wetland as a living classroom, inviting more than a 100 participants to step gently into an ecosystem that survives — and protects — a capital city.

Wetlands, it became clear, are not places of stillness. They are places of conversation.

Beyond the surface

In daylight, Beddagana appears serene — open water stitched with reeds, dragonflies hovering above green mirrors.

Yet beneath the surface lies an intricate architecture of life. Wetlands are not defined by water alone, but by relationships: fungi breaking down matter, insects pollinating and feeding, amphibians calling across seasons, birds nesting and mammals moving quietly between shadows.

Participants learned this not through lectures alone, but through touch, sound and careful observation. Simple water testing kits revealed the chemistry of urban survival. Camera traps hinted at lives lived mostly unseen.

Demonstrations of mist netting and cage trapping unfolded with care, revealing how science approaches nature not as an intruder, but as a listener.

Again and again, the lesson returned: nothing here exists in isolation.

Learning to listen

Perhaps the most profound discovery of the day was sound.

Wetlands speak constantly, but human ears are rarely tuned to their frequency. Researchers guided participants through the wetland’s soundscape — teaching them to recognise the rhythms of frogs, the punctuation of insects, the layered calls of birds settling for night.

Then came the inaudible made audible. Bat detectors translated ultrasonic echolocation into sound, turning invisible flight into pulses and clicks. Faces lit up with surprise. The air, once assumed empty, was suddenly full.

It was a moment of humility — proof that much of nature’s story unfolds beyond human perception.

Sethil on camera trapping

The city’s quiet protectors

Environmental researcher Narmadha Dangampola offered an image that lingered long after her words ended. Wetlands, she said, are like kidneys.

“They filter, cleanse and regulate,” she explained. “They protect the body of the city.”

Her analogy felt especially fitting at Beddagana, where concrete edges meet wild water.

She shared a rare confirmation: the Collared Scops Owl, unseen here for eight years, has returned — a fragile signal that when habitats are protected, life remembers the way back.

Small lives, large meanings

Professor Shaminda Fernando turned attention to creatures rarely celebrated. Small mammals — shy, fast, easily overlooked — are among the wetland’s most honest messengers.

Using Sherman traps, he demonstrated how scientists read these animals for clues: changes in numbers, movements, health.

In fragmented urban landscapes, small mammals speak early, he said. They warn before silence arrives.

Their presence, he reminded participants, is not incidental. It is evidence of balance.

Narmadha on water testing pH level

Wings in the dark

As twilight thickened, Dr. Tharaka Kusuminda introduced mist netting — fine, almost invisible nets used in bat research.

He spoke firmly about ethics and care, reminding all present that knowledge must never come at the cost of harm.

Bats, he said, are guardians of the night: pollinators, seed dispersers, controllers of insects. Misunderstood, often feared, yet indispensable.

“Handle them wrongly,” he cautioned, “and we lose more than data. We lose trust — between science and life.”

The missing voice

One of the evening’s quiet revelations came from Sanoj Wijayasekara, who spoke not of what is known, but of what is absent.

In other parts of the region — in India and beyond — researchers have recorded female frogs calling during reproduction. In Sri Lanka, no such call has yet been documented.

The silence, he suggested, may not be biological. It may be human.

“Perhaps we have not listened long enough,” he reflected.

The wetland, suddenly, felt like an unfinished manuscript — its pages alive with sound, waiting for patience rather than haste.

The overlooked brilliance of moths

Night drew moths into the light, and with them, a lesson from Nuwan Chathuranga. Moths, he said, are underestimated archivists of environmental change. Their diversity reveals air quality, plant health, climate shifts.

As wings brushed the darkness, it became clear that beauty often arrives quietly, without invitation.

Sanoj on female frogs

Coexisting with the wild

Ashan Thudugala spoke of coexistence — a word often used, rarely practiced. Living alongside wildlife, he said, begins with understanding, not fear.

From there, Sethil Muhandiram widened the lens, speaking of Sri Lanka’s apex predator. Leopards, identified by their unique rosette patterns, are studied not to dominate, but to understand.

Science, he showed, is an act of respect.

Even in a wetland without leopards, the message held: knowledge is how coexistence survives.

When night takes over

Then came the walk: As the city dimmed, Beddagana brightened. Fireflies stitched light into darkness. Frogs called across water. Fish moved beneath reflections. Insects swarmed gently, insistently. Camera traps blinked. Acoustic monitors listened patiently.

Those walking felt it — the sense that the wetland was no longer being observed, but revealed.

For many, it was the first time nature did not feel distant.

Faunal diversity at the Beddagana Wetland Park

A global distinction, a local duty

Beddagana stands at the heart of a larger truth. Because of this wetland and the wider network around it, Colombo is the first capital city in the world recognised as a Ramsar Wetland City.

It is an honour that carries obligation. Urban wetlands are fragile. They disappear quietly. Their loss is often noticed only when floods arrive, water turns toxic, or silence settles where sound once lived.

Commitment in action

For Dilmah Conservation, this night was not symbolic.

Speaking on behalf of the organisation, Rishan Sampath said conservation must move beyond intention into experience.

“People protect what they understand,” he said. “And they understand what they experience.”

The Beddagana initiative, he noted, is part of a larger effort to place science, education and community at the centre of conservation.

Listening forward

As participants left — students from Colombo, Moratuwa and Sabaragamuwa universities, school environmental groups, citizens newly attentive — the wetland remained.

It filtered water. It cooled air. It held life.

World Wetlands Day passed quietly. But at Beddagana, something remained louder than celebration — a reminder that in the heart of the city, nature is still speaking.

The question is no longer whether wetlands matter.

It is whether we are finally listening.

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Cuteefly … for your Valentine

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Indunil with one of her creations

Valentine’s Day is all about spreading love and appreciation, and it is a mega scene on 14th February.

People usually shower their loved ones with gifts, flowers (especially roses), and sweet treats.

Couples often plan romantic dinners or getaways, while singles might treat themselves to self-care or hang out with friends.

It’s a day to express feelings, share love, and make memories, and that’s exactly what Indunil Kaushalya Dissanayaka, of Cuteefly fame, is working on.

She has come up with a novel way of making that special someone extra special on Valentine’s Day.

Indunil is known for her scented and beautifully turned out candles, under the brand name Cuteefly, and we highlighted her creativeness in The Island of 27th November, 2025.

She is now working enthusiastically on her Valentine’s Day candles and has already come up with various designs.

“What I’ve turned out I’m certain will give lots of happiness to the receiver,” said Indunil, with confidence.

In addition to her own designs, she says she can make beautiful candles, the way the customer wants it done and according to their budget, as well.

Customers can also add anything they want to the existing candles, created by Indunil, and make them into gift packs.

Another special feature of Cuteefly is that you can get them to deliver the gifts … and surprise that special someone on Valentine’s Day.

Indunil was originally doing the usual 9 to 5 job but found it kind of boring, and then decided to venture into a scene that caught her interest, and brought out her hidden talent … candle making

And her scented candles, under the brand ‘Cuteefly,’ are already scorching hot, not only locally, but abroad, as well, in countries like Canada, Dubai, Sweden and Japan.

“I give top priority to customer satisfaction and so I do my creative work with great care, without any shortcomings, to ensure that my customers have nothing to complain about.”

Indunil creates candles for any occasion – weddings, get-togethers, for mental concentration, to calm the mind, home decorations, as gifts, for various religious ceremonies, etc.

In addition to her candle business, Indunil is also a singer, teacher, fashion designer, and councellor but due to the heavy workload, connected with her candle business, she says she can hardly find any time to devote to her other talents.

Indunil could be contacted on 077 8506066, Facebook page – Cuteefly, Tiktok– Cuteefly_tik, and Instagram – Cuteeflyofficial.

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