What do we have in common with fish, besides being vertebrates? The types of joints we (and most vertebrates) share most likely originated from the same common ancestor. But it’s not a feature that we ...

Jawless, bloodsucking fish could help us understand how humans and all other vertebrates evolved, scientists say. Turns out, lampreys — notable for their lack of jaw and generally terrifying ...

A new analysis of the bones and muscles in ancient fish gives new clues about how the shoulder evolved in animals -- including us. A new analysis of the bones and muscles in ancient fish gives new ...

Immunostaining depicts collagen-2 (cyan) and nucleus (magenta) at the articulation in the little skate embryo's pelvic joint. Synovial joints are a key feature of most vertebrate skeletons, providing ...

Hundreds of millions of years ago, jawless fishes swam Earth’s seas, their brains protected on the outside by armored skin, and on the inside by plates made of cartilage. Scientists are still piecing ...

X-rays of an ancient jawless fish shows earliest-known example of internal cartilage skull, unlike that of any other known vertebrate. A 455-million-year-old fossil fish provides a new perspective on ...

More than 400 million years ago, ancient oceans were teeming with many fish that might seem alien in today’s seas. Back then some wore plates of bony armor and lacked jaws, such as the arandaspids, ...

Immunostaining depicts collagen-2 (cyan) and nucleus (magenta) at the articulation in the little skate embryo's pelvic joint. (Neelima Sharma/University of Chicago) (CN) — Neelima Sharma, a researcher ...

A new analysis of the bones and muscles in ancient fish gives new clues about how the shoulder evolved in animals – including us. The shoulder girdle – the configuration of bones and muscles that in ...

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