This ancient tadpole fossil is the oldest ever discovered
CTV
Scientists in Argentina have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million years ago.
Scientists have discovered the oldest-known fossil of a giant tadpole that wriggled around over 160 million years ago.
The new fossil, found in Argentina, surpasses the previous ancient record holder by about 20 million years.
Imprinted in a slab of sandstone are parts of the tadpole's skull and backbone, along with impressions of its eyes and nerves.
“It's not only the oldest tadpole known, but also the most exquisitely preserved,” said study author Mariana Chuliver, a biologist at Buenos Aires’ Maimonides University.
Researchers know frogs were hopping around as far back as 217 million years ago. But exactly how and when they evolved to begin as tadpoles remains unclear.
This new discovery adds some clarity to that timeline. At about a half foot (16 centimetres) long, the tadpole is a younger version of an extinct giant frog.
Tropical storm Sara drenches Honduras’ northern coast, with flash flooding and mudslides in forecast
Tropical storm Sara stalled over Honduras on Saturday. The area could see life-threatening flash flooding and mudslides through the weekend.
It's a growing trend online: fragrance influencers who rave about the beauty, sexiness and notes of vanilla in perfume have caught the attention of Canadian teenagers who are, in turn, flocking to cologne counters across the country.
The Edmonton Valley Zoo is debuting two red panda cubs named after the mischievous twin wizards in the "Harry Potter" series.
While it remains small compared to established online spaces such as X, Bluesky has emerged as an alternative for those looking for a different mood, lighter and friendlier and less influenced by Musk.
The two biggest children’s hospitals in Montreal - the CHU Sainte-Justine and Montreal Children's Hospital - are asking parents to avoid bringing their children to the emergency room if possible due to a surge in patients.
The ancient Roman Colosseum will be the venue of gladiator fights -- albeit staged -- for the first time in two millennia under a US$1.5 million sponsorship deal with Airbnb that aims to promote 'a more conscious tourism.'
Starting in January, people will be able to make online reservations for campsites for the 2025 season.
Premier Doug Ford's government has signed a $100-million deal with Elon Musk's SpaceX to deliver high-speed internet to remote residents in rural and northern Ontario.
Hallmark Canada has recalled a Star Wars-themed Christmas ornament after mould was found on several of the products.
In case you can't get enough of the little pygmy hippo Moo Deng from Thailand, there's now an official song featuring the internet's favourite baby animal — released in four languages for her global fans.
In part two of a three-part series into how thieves are able to drive off with modern vehicles so easily, CTV W5 correspondent Jon Woodward uses a device flagged by police to easily clone a car key.