If you pinch the base of your nose between finger and thumb you feel that it is made of hard bone. Do the same to the tip of your nose you note that it is soft, flexible and rubbery because it is made ...

Sharks were thought to have evolved with a cartilage-based skeleton before other types of fish formed a boney structure, but a new discovery turns that on its head. An ancient 'armoured fish' skull ...

We have established a cartilaginous fish cell line [Squalus acanthias embryo cell line (SAE)], a mesenchymal stem cell line derived from the embryo of an elasmobranch, the spiny dogfish shark S.

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 ...

SAN FRANCISCO -- A team of researchers including SF State Assistant Professor of Biology Scott Roy has sequenced the entire genome of the elephant shark, uncovering several features that may shed ...

Sharks are fascinating creatures. These fish have been around for around 455 million years and are known to be one of the ocean's apex predators, according to the National Oceanic and Atmospheric ...

Today, ray-finned fish, which belong to the bony fish, are by far the most biodiverse fish group in both salt- and freshwater. Their spectacular variety of forms ranges from eels, tuna, flounders and ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The remains of a 415-million-year-old fish skull from Siberia — though miniscule in size — offer ...