Smithsonian researchers have linked discoveries within Arizona’s Petrified Forest National Park with a previously unknown ...

Brazil's Chamber of Deputies has approved the Senate's substitute text for a bill that would ban the testing of cosmetics, ...

Mitochondria are the body's "energy factories," and their proper function is essential for life. Inside mitochondria, a set ...

A new study provides many new insights into the biology of the prehistoric gigantic shark megalodon (megatooth shark), which lived nearly worldwide 15–3.6 million years ago. Paleobiology professor ...

My, what small teeth they had. A newfound treasure trove of ancient fish fossils unearthed in southern China is opening a window into the earliest history of jawed vertebrates — a group that ...

Myelin appears suddenly in vertebrates, animals with backbones that arose 500 million years ago. Not a trace of it is found in the ancestral line that preceded the arrival of vertebrates.

Vertebrates (animals with vertebrae) constitute a large group of animals including fish, amphibians, reptiles, birds, and mammals. A remarkable stage in their evolution was the transition from ...

Vertebrates May Have Used Vocal Communication More Than 100 Million Years Earlier Than We Thought Animals with a backbone may have first emitted something akin to bleeps, grunts, crackles, toots ...

Protecting large swaths of Earth's land can help stem the tide of biodiversity loss -- including for vertebrates like amphibians, reptiles, mammals and birds, according to a new study published in ...

Fish: Vertebrates that live in water and breathe using gills; Fish are defined as vertebrates (meaning they have a backbone) that live in water and use gills to breathe.

Why do almost all vertebrates have tails, even when they don’t seem useful, but apes and frogs don’t? Stephen Johnson Eugene, Oregon, US. All non-aquatic vertebrates descend from a common ...