In those waters, fish — the first vertebrates — appeared roughly 480 million years ago, a study finds. For nearly 100 million years, those creatures rarely strayed from that habitat ...

Even the gentlest sip of a cold drink can send a jolt through our teeth. That familiar sting, long thought to be a side ...

Over the years, numerous hypotheses for how vertebrates first appeared and developed have emerged, Jiang tells The Scientist. “Any progress about the [yunnanozoan’s] phylogenetic position is key to ...

The first vertebrates on Earth were fish, and scientists believe they first appeared around 480 million years ago. But fossil records from this time are spotty, with only small fragments identified.

New research from the University of Chicago reveals that teeth may have evolved from sensory armor in ancient fish.

Vertebrates first appear in the fossil record slightly earlier than these finds, but pinpointing exactly how they developed is difficult. This is because fossils of such animals are rare ...

Seventeen footprints preserved in a slab of sandstone discovered in southeastern Australia dating to about 355 million years ago are rewriting the history of the evolution of land vertebrates, showing ...

Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives ...

Earth’s earliest land-walking vertebrates didn’t paddle about in freshwater lakes or rivers. Instead, these four-footed creatures, which appeared ... In 1929, the first Ichthyostega fossils ...

It appeared to be the skin of a beaver or a ... The story of the egg spans millions of years, from the first vertebrates that dared to venture onto dry land to today's mammals, including the ...

The first vertebrates took to the skies sometime during ... not with feathers like the birds that eventually appeared about ...

In contrast, both the amphioxus and vertebrates appear to have retained many of ... still retain much of the genetic legacy of the very first chordates. These discoveries are exactly why the ...