The finned octopus lived alongside T. rex and may have been one of the top predators in the ancient ocean food chain.

An ancient giant kangaroo that lived in Australia 50,000 years ago likely hopped after all, refuting past research on the species, according to a new study. Scientists previously believed that ...

The discovery challenges a 370-million-year-old assumption that only vertebrates could be top ocean predators.

The creature measured up to 62 feet and shared the seas with mosasaurs, plesiosaurs, and great-white-sized sharks.

Between 50,000 and 10,000 years ago, many of the world's largest mammals disappeared. Picture creatures like saber-toothed cats with 7-inch fangs and ...

A new study finds that the extinction of large mammals between 50,000 and 10,000 years ago continues to affect predator-prey dynamics, especially in the Americas. Researchers analyzed data from 389 ...

New research suggests giant octopuses up to 19 metres long may have ruled ancient oceans 100 million years ago, challenging ...

Ancient Earth once buzzed with enormous dragonfly-like insects, and scientists long thought high oxygen levels made their ...

The post This Giant Ancient Turtle Dwarfs Its Modern Ancestors appeared first on A-Z Animals. Turtles today are often slow-moving, modestly sized creatures, but their ancient relatives were quite ...

Around 50,000 to 10,000 years ago, the Earth lost many of its largest animals. These were not just slightly bigger versions of today’s wildlife, but true giants. There were saber-toothed cats with ...