Stay up to date with notifications from The Independent

Notifications can be managed in browser preferences.

One of the world’s largest frogs lived with dinosaurs – it now faces extinction from humans

The frog is described by scientists as ‘a living fossil’

Rodrigo Gutierrez
Wednesday 18 December 2024 12:48 GMT
Comments
A Chilean frog (Calyptocephalella gayi) is seen in a wetland in the middle of a neighbourhood in the city of Quilpue, Chile
A Chilean frog (Calyptocephalella gayi) is seen in a wetland in the middle of a neighbourhood in the city of Quilpue, Chile (REUTERS)

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

A giant frog species that hopped alongside dinosaurs and is considered a “living fossil” is now losing ground in its native Chile as climate change and human intervention damage its habitat.

The Calyptocephallela gayi, or Helmeted Water Toad, is one of the largest frogs in the world, growing up to over 30 cm (1 foot) in length and weighing up to 1 kg (2.2 lbs).

The amphibian has seen little genetic variation for millions of years, but now its future is at risk, scientists say.

“It’s sad that a species that managed to coexist with dinosaurs, that managed to resist a mass extinction, is now threatened by human beings,” said Melissa Cancino, a vetinarian and founder of Proyecto Anfibia, a group dedicated to amphibian research and education in Chile.

A Chilean frog (Calyptocephalella gayi) sits on a tree trunk in a wetland in the middle of a neighbourhood in the city of Quilpue, Chile
A Chilean frog (Calyptocephalella gayi) sits on a tree trunk in a wetland in the middle of a neighbourhood in the city of Quilpue, Chile (REUTERS)

The Helmeted Water Toad’s environment spans from the northern region of Coquimbo to the southern island of Chiloe, but its population is suspected to have declined by at least 30% since 1990 and it is listed as “vulnerable” on the International Union for Conservation of Nature’s (IUCN) Red List.

Factors such as climate change, habitat interruption, environmental decline and pollution have all caused the Helmeted Water Toad’s numbers to dwindle, Cancino said. Poor water and waste management have also threatened the frog’s environment.

Environmental researchers look for Chilean frog tadpoles (Calyptocephalella gayi) in a wetland in the middle of a neighbourhood in the city of Quilpue,
Environmental researchers look for Chilean frog tadpoles (Calyptocephalella gayi) in a wetland in the middle of a neighbourhood in the city of Quilpue, (REUTERS)

Matias Faundez, another member of Proyecto Anfibia, has seen the habitat degradation first hand.

“This estuary runs through the whole city, and has plenty of illegal run-offs,” he said as he waded through a stream outside of Valparaiso. “Even so, the frog manages to survive.”

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in