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The timeless tortoise: Secrets to longevity and survival

The tortoise’s slow walk is not just a quirky trait — it’s a life philosophy, ingrained in their very survival

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Image credit: Pixabay

When we think of slow and steady, the image of a tortoise often comes to mind. But behind that unhurried gait lies a remarkable creature capable of defying time itself. The tortoise is among the longest-living animals on the planet. Their extraordinary lifespan has fascinated biologists and storytellers alike, leading us to wonder: how do these creatures live so long? Is it the giant tortoises of the Galápagos or the smaller, land-dwelling species that hold the key to longevity? Let’s take a deeper look.

A Life of Patience and Persistence

The tortoise’s slow walk is not just a quirky trait — it’s a life philosophy, ingrained in their very survival. These creatures are not in a race against time, they are its patient conquerors. Some species of tortoises can live well over a century, and in the case of the Giant Tortoise (known for its immense size), individuals have been documented living for more than 200 years. But why is it that these ancient reptiles live so long, while their cousins, the turtles, tend to have shorter lifespans?

In terms of lifespan, tortoises—especially the giant tortoises—lead the pack. A giant tortoise can outlive many other creatures, including their ocean-dwelling cousins, the turtles. While turtles generally live between 50 to 100 years, giant tortoises surpass this, sometimes even living beyond 150 years. In fact, Jonathan, a Seychelles giant tortoise living on Saint Helena Island in the South Atlantic, holds the record as the world’s oldest living land animal at 189 years old. Jonathan, who was born in 1832, has outlived all of his peers, continuing to thrive on the island where he was discovered.

The Science Behind Their Longevity

The secret to the tortoise’s longevity lies deep within its biology. While there are several factors that contribute to their long lives, two of the most significant are evolutionary adaptations and cellular processes that are finely tuned to conserve energy and maintain health over decades.

Image: Marzena P. from Pixabay

From an evolutionary perspective, tortoises face fewer natural threats in their environment compared to faster, more vulnerable animals. For many species of tortoises, survival has been less about outpacing predators and more about outlasting them. Many tortoises lay multiple eggs, often many more than a single clutch, and they continue to reproduce over several decades. This “quality over quantity” approach to reproduction ensures that their genes continue to thrive, while their individual lifespans stretch out.

Moreover, tortoises tend to have slower metabolic rates compared to other animals. Their bodies conserve energy by keeping their metabolic processes at a steady, slow pace. This “slow burn” strategy is key to their extended lifespans. A slow metabolism means that fewer cellular processes are damaged by the wear and tear of daily life, which translates into fewer health issues in old age.

One of the most fascinating aspects of tortoise longevity is the role of their telomeres. Telomeres are the protective caps at the ends of chromosomes that prevent them from fraying and tangling. Every time a cell divides, the telomeres shorten slightly. In most organisms, as the telomeres shorten, cells lose their ability to divide, eventually leading to aging. However, in tortoises, the telomeres wear down at an unusually slow rate, allowing their cells to divide without the usual detrimental effects seen in other animals. This slower rate of telomere shortening helps them avoid age-related diseases such as cancer and ensures that their cells remain healthier for longer.

Furthermore, some studies have revealed that tortoises are capable of a process called apoptosis—a form of programmed cell death—where damaged or dysfunctional cells are destroyed before they can cause harm. This controlled form of self-destruction in damaged cells helps prevent the formation of tumors and other age-related diseases, which is another reason for the tortoise’s impressive lifespan.

The Giants of the Tortoise World

When we talk about longevity in tortoises, we cannot overlook the giant tortoises of the Galápagos Islands and the Seychelles. These remarkable creatures have not only captured our imagination but have also become living symbols of resilience and endurance.

The Galápagos Giant Tortoise, for instance, can live over 150 years, and some individuals have even outlived the scientists who studied them. They were once thought to be heading for extinction, but thanks to conservation efforts, their populations have stabilized.

In India, a rare breed of tortoise known as the Aldabra Giant Tortoise has been known to live up to 255 years. This species, although not as well-known as the Galápagos counterparts, is another testament to the wonders of nature’s design.

Turtles, which are often found in aquatic environments, tend to live shorter lives, averaging about 30 to 50 years

But what about other, lesser-known giants? In Kasaragod, Kerala, India, a giant soft-shell turtle species was discovered in May 2021, which lives in freshwater, weighing over 100 kilograms! These giant creatures are living proof of the astonishing adaptability and longevity that nature has to offer.

The Mystery of Tortoises and Turtles

While all tortoises are technically land-dwelling creatures, there is an interesting distinction between tortoises and turtles. Turtles, which are often found in aquatic environments, tend to live shorter lives, averaging about 30 to 50 years. Tortoises, on the other hand, tend to have larger bodies, longer necks, and more robust shells. Their heavy, often plant-based diet plays a role in the additional years they add to their lifespan.

A surprising discovery made in the Seychelles in recent years has sent shockwaves through the scientific community: certain tortoises, once thought to be herbivorous, have been seen eating birds and other small animals. This has raised questions about the adaptability of tortoises in changing environments and has piqued the interest of researchers studying their survival strategies.

What Lies Ahead?

Despite all that we know about these extraordinary creatures, there is still much to discover. Researchers continue to study tortoises, particularly the giant species, to learn how their unique biological traits could benefit human medicine, particularly in the fight against aging and diseases like cancer. The discovery of their telomere dynamics, coupled with the ability to prevent cell damage through apoptosis, could one day revolutionize the way we approach longevity and healthcare.

For now, we can only marvel at the tortoise’s timeless existence, its slow, steady journey through the ages, and the lessons it teaches us about patience, resilience, and the secrets of life’s most enduring creatures.

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Kerala Elephant in Critical Condition After Head Injury: Urgent Medical Attention Needed

The elephant, estimated to be around 35 years old, is suffering from a deep head wound, with exposed tissue and maggots, causing immense pain

Lakshmi Narayanan

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Image credit: 'Kattanapremikal' (Wild Elephant Lovers) WhatsApp Group

A wild elephant found with a severe head injury in the Athirappilly and Ezattumugham Forest Range in South Indian state Kerala continues to face a life-threatening situation. The elephant, estimated to be around 35 years old, is suffering from a deep head wound, with exposed tissue and maggots, causing immense pain. Local residents and wildlife enthusiasts are urgently calling for more attention to the situation.

In January, the elephant was spotted in an oil palm plantation with a deep wound on its head. Following requests from the locals, the Kerala Forest Department, led by Dr. Arun Zacharia, carried out initial treatment by tranquilizing and capturing the elephant, providing the first stage of medical care before releasing it back into the wild. According to the medical team, the injury was likely caused during a conflict with other elephants.

The elephant has been seen desperately throwing dirt onto its head in an attempt to alleviate its pain, further aggravating the injury

However, within days of its release, the elephant returned to the palm plantation, and its condition has worsened significantly. Locals have reported that the wound is now even more severe, with visible rotting flesh and maggots. The elephant has been seen desperately throwing dirt onto its head in an attempt to alleviate its pain, further aggravating the injury. To ease its suffering, the elephant has been seen standing in water, a known behaviour when in distress.

Moreover, the elephant appears to be rejecting food, and it is suspected that the infection from the wound has spread to other parts of its body. The ongoing infection has impacted the digestive process, leading to severe weight loss. According to nearby residents and wildlife lovers, the elephant is rapidly deteriorating in both health and strength.

Video credit: Manuprasad

To save the elephant, experts emphasize the need for immediate intervention. It is crucial to capture the elephant again using trained “kumki” elephants (trained elephants used to capture, calm, and herd wild elephants in India), and then transport it to a more controlled environment, such as the Kodanad Elephant Camp (Ernakulam district of Kerala), where it can receive expert care and advanced medical treatment. However, Dr. Arun Zacharia, the Forest Veterinary Surgeon, has told the media that the elephant’s current health condition does not allow for the safe use of tranquilizers to capture it.

The situation is becoming increasingly dire, and without prompt and adequate intervention, the elephant’s chances of survival are bleak. Environmentalists and wildlife organizations are urged to step in and take immediate action to prevent the unnecessary suffering and potential loss of this majestic animal.

This distressing situation calls for the urgent involvement of national environmentalists and NGOs to bring attention to the elephant’s condition and mobilize resources for its rescue and treatment. The community hopes that swift action will help prevent this tragedy and ensure the elephant receives the care it desperately needs.

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Global Effort to Save Glaciers Begins

UNESCO and WMO have launched the International Year of Glaciers’ Preservation to combat global melting crisis

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UNESCO and the World Meteorological Organization (WMO) officially launched the International Year of Glaciers’ Preservation on January 21, 2025, marking a critical moment in the fight against the accelerating retreat of glaciers, which provide essential freshwater to over 2 billion people globally.

The year-long initiative, which was declared by the United Nations General Assembly in December 2022, aims to raise global awareness about the vital role glaciers play in the climate system and hydrological cycle. It also highlights the urgent need for action to tackle the challenges posed by the rapid melting of these “water towers” of the world.

A Call for Action on Glaciers’ Preservation

Over 275,000 glaciers worldwide, covering approximately 700,000 square kilometers, store around 70% of the planet’s freshwater. Yet, these critical resources are melting at an alarming rate due to climate change, posing significant risks to water security, ecosystems, and livelihoods.

WMO Secretary-General Celeste Saulo emphasized the urgency of the situation in a press statement: “WMO recently confirmed that 2024 was the warmest year on record and has sounded repeated Red Alerts about the state of our climate, including the retreat of glaciers. In 2023, glaciers suffered the largest mass loss in five decades. This international year must be a wake-up call to the world.”

UNESCO Director-General Audrey Azoulay underscored the profound significance of glaciers beyond their environmental role: “The preservation of glaciers stands as one of humanity’s most urgent challenges. These ancient ice formations are not just frozen water – they are the guardians of our planet’s climate history, the source of life for billions, and sacred places for many cultures.”

Raising Awareness and Mobilizing Action

The International Year of Glaciers’ Preservation will bring together more than 75 international organizations and 35 countries, with numerous events and activities designed to educate the public and encourage policy changes. These efforts will focus on expanding global glacier monitoring systems, improving early warning systems for glacier-related hazards, and promoting sustainable water resource management in glacier-dependent regions.

Bahodur Sheralizoda, Chairman of the Committee for Environmental Protection of Tajikistan, which played a key role in the declaration of the year, expressed confidence in the initiative’s potential: “We are confident that this initiative will mobilize the global community, inspire action, and drive the policies and solutions necessary to protect these invaluable natural resources.”

The Impact of Glacier Loss

Glaciers are not only crucial for freshwater storage but also act as time capsules of Earth’s climate history. They preserve valuable records that inform scientists about past climate patterns, atmospheric composition, and even human activities. As glaciers continue to melt, these archives are lost forever.

John Pomeroy, co-chair of the Advisory Board and professor at the University of Saskatchewan, pointed out the consequences of glacier retreat: “Glaciers don’t care if we believe in science – they just melt in the heat for all to see. More than 2 billion people rely on mountain snow and ice to replenish their rivers, lakes, and groundwater. All of this is now at risk as global heating causes rapid glacier retreat.”

The impacts of glacier loss are especially severe for communities living in regions like the Himalayas, Hindu Kush, and the Tibetan Plateau, where the headwaters of major river basins provide water to half of humanity. The immediate dangers include increased landslides, avalanches, floods, and droughts. Long-term consequences, however, could threaten the stability of entire economies and ecosystems dependent on glacier-fed waters.

Protecting Cultural Heritage

Glaciers also hold deep cultural and spiritual significance for Indigenous communities across the globe. For many in Asia, Latin America, the Pacific, and East Africa, glaciers are sacred spaces, often linked to deities and ancestral traditions. The loss of glaciers would not only disrupt local water supplies but would also erase invaluable cultural heritage, some of which is recognized by UNESCO as Intangible Cultural Heritage of Humanity.

A Global Call to Action

The International Year of Glaciers’ Preservation 2025 emphasizes the urgent need for global collaboration to mitigate climate change and adapt to its effects. Governments, scientific institutions, businesses, and civil society are urged to join forces in protecting these irreplaceable natural resources for future generations.

As Carolina Adler, co-chair of the Mountain Research Initiative, noted: “This year is not just a reminder of the glaciers we are losing – it is a call to action to preserve what remains and ensure that future generations inherit a world with the same vital resources we have January 21, 2025.”

The time to act is now, and the world is watching.

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Environmental Challenges Take Centre Stage in an Increasingly Fractured World

“From conflicts to climate change, we are facing interconnected crises that demand coordinated, collective action,” said Mark Elsner, Head of the Global Risks Initiative at the World Economic Forum

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Credit: Pixabay

The World Economic Forum’s 20th edition of its Global Risks Report, released today, provides a sobering look at the future of our planet. With escalating geopolitical, societal, technological, and environmental crises converging, the report reveals a global landscape that is increasingly divided and fragile. While economic risks have taken a backseat this year, they remain closely intertwined with other challenges, especially those related to the environment.

Environmental Risks: Dominating the Long-Term Outlook

Environmental concerns have taken centre stage in this year’s report, with extreme weather events, biodiversity loss, and ecosystem collapse topping the list of risks expected to pose the greatest threats in the coming decade. The World Economic Forum’s experts surveyed noted that these environmental challenges are expected to not only increase in frequency but also in intensity.

“From conflicts to climate change, we are facing interconnected crises that demand coordinated, collective action,” said Mark Elsner, Head of the Global Risks Initiative at the World Economic Forum. This interconnectedness underscores the urgency of addressing environmental risks not just as isolated threats, but as part of a broader system of global instability.

Extreme weather events, already a top concern for both short-term and long-term risks, are becoming more prevalent, with devastating impacts on communities, economies, and ecosystems around the world. As climate patterns shift and the intensity of storms, floods, and droughts escalates, the pressure on vulnerable populations will intensify.

Beyond extreme weather, the report also highlights the increasingly dire consequences of biodiversity loss, the collapse of ecosystems, and the depletion of natural resources. These environmental degradations are not only harmful to wildlife but threaten to disrupt entire food and water systems, destabilizing nations and exacerbating existing societal tensions.

Pollution, another environmental risk, is perceived as a significant challenge, with its presence in both the short-term and long-term risk categories signaling a growing recognition of its damaging effects on human health and the planet’s ecosystems. Air, water, and land pollution, stemming from industrial processes and unchecked waste, continue to pose long-lasting threats to environmental and public health.

A Fractured Global Landscape

The report also paints a stark picture of geopolitical and societal divisions, signaling a period of intense global instability. Over half of the respondents predict instability within the next two years, fueled by rising geopolitical tensions, societal polarization, and erosion of trust in governing institutions. This instability is further exacerbated by the growing challenges posed by environmental risks.

Mirek Dušek, Managing Director at the World Economic Forum, stressed the impact of these divisions: “Rising geopolitical tensions and a fracturing of trust are driving the global risk landscape.” He added that this breakdown in global cooperation presents an urgent need for collaboration and resilience to prevent further vulnerabilities from compounding.

Environmental risks, intertwined with geopolitical and technological challenges, could trigger a cascade of negative effects, particularly as nations grapple with resource shortages and the growing costs of climate-related disasters. This “fractured” global order, marked by competition among powers, risks undermining efforts to tackle these pressing environmental threats.

The Need for Global Cooperation

The 2025 report presents an alarming vision for the future, with nearly two-thirds of experts predicting a turbulent global landscape by 2035. Many worry that the mechanisms for international collaboration will come under increasing strain as nations struggle to address escalating environmental and societal risks.

However, amid these challenges, the report offers a message of hope: the need for coordinated action. “The consequences of inaction could be felt for generations to come,” warns Elsner. In this context, leaders have an urgent responsibility to prioritize global cooperation. Effective dialogue, trust-building, and the strengthening of international relationships are crucial for fostering resilience in the face of mounting environmental threats.

While the current geopolitical landscape might be fractured, the report makes it clear that turning inward and focusing solely on national interests is not a viable solution. The complexity and interconnectedness of global risks require renewed efforts to collaborate and address the environmental challenges head-on. Only through global cooperation can the world hope to mitigate the adverse effects of climate change, protect vital ecosystems, and ensure a sustainable and inclusive future for all.

A Decisive Decade

As we move deeper into the 2020s, the stakes are higher than ever. The coming decade will be a critical period for decision-making. Will leaders rise to the challenge of navigating a fractured global order, or will the world be consumed by escalating risks? The answer lies in the collective ability to foster cooperation, prioritize environmental sustainability, and rebuild trust among nations.

The Global Risks Report serves as a powerful reminder that environmental risks are not isolated challenges; they are deeply interconnected with societal, geopolitical, and economic instability. How the world responds to these pressing issues in the coming years will determine the stability and resilience of future generations.

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