Scientists have uncovered a surprising genetic shift that may explain how animals with backbones—from fish and frogs to ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a spine—including all mammals, fish, reptiles and amphibians—evolved. In a paper ...

Learn how increased protein diversity in signaling genes may have helped drive the shift from invertebrates to vertebrates, ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a spine - ...

Every mammal, every fish, every vertebrate (creatures that have a spine) has two eyes. It’s been that way for millions and ...

A new study showing how a prehistoric sea cow was preyed upon by not one, but two different carnivores—a crocodilian and a shark—is revealing clues into both the predation tactics of ancient creatures ...

About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, and shallow seas shrank fast.

Blue whales are the biggest animals on Earth, but have you wondered which is the smallest? Scientists have recently described one of the world’s tiniest vertebrates: an adorable miniature toad species ...

"World News" wants to know what you think. Share your comments below. Oct. 27, 2010— -- As scientists and policy makers gather in Japan to discuss the global environment, a new study is ...

Ancient fossils reveal the oldest known vertebrates had four eyes. Remarkably preserved fossil specimens show they could see the world using four camera-type eyes, reshaping our understanding of how ...

Humans have a ''disproportionately huge effect'' on the other species of vertebrates that share Earth's surface with us, causing more than 25 percent of the deaths among an array of species all over ...