A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

Fossils of Tiktaalik roseae blended fins with hints of limbs and sported a flat head suited for peering above the waterline.

Keep an eye out for marine iguanas on the Galápagos Islands. These underwater Godzillas are found nowhere else on Earth!

The Galápagos Islands are famous worldwide for their one-of-a-kind plants and animals ... species from their land-dwelling ancestors. While land iguanas have round tails, marine iguanas have ...

Discover 6 types of birds that are blue! Beyond blue jays, we dive into tree swallows, eastern bluebirds, and much more!

Imagine standing on a muddy riverbank 50 million years ago and seeing a strange creature lumbering by—part crocodile, part ...

Astonishingly, these animals use scientific phenomena to master ... Raft spiders are amazing water-dwelling hunters found across Europe. They have long, waxy legs with which they can walk across ...

A small bone found 30 years ago at Dinosaur Cove in southeastern Australia could turn what we know about the evolution of ...

Green snakes, found across continents, exhibit diverse behaviors and habitats, ranging from harmless insectivores to venomous ...

While most of us are not able to swim properly, even after having brains bigger than other creatures, there are some animals that can not only swim but effortlessly walk on water. Interestingly ...

Australia's burrowing echidna evolved from a water-dwelling ancestor in an "extremely rare" biological event, scientists said Tuesday in a new study of the peculiar egg-laying mammals. With ...