Sturgeon are among the oldest fish on Earth, yet many present-day sturgeon species are at threat of extinction, with 17 of 27 species listed as “critically endangered.” Sporting an armor of five rows ...

The gills have a relatively small surface area compared with the body mass of the fish; these are the gills of a slow-going rather than an active fish. The scales ... paired lobe fins are ...

Researchers were able to examine the fish in great detail using a powerful microscope. See what they discovered.

The cartilaginous fish, so-called because cartilage formed their skeletons, later gave rise to sharks and rays. They had small, rough scales, fixed fins, and sharp, replaceable teeth. The second ...

At first glance, the fish looked like another known species ... The new species was identified by its body shape, scales, fin shape, coloring and other subtle physical features, the study said.

To scale a fish, with the back of a knife scrap ... Pull out the innards.Wash the fish in cold water. To remove the fins from a fish, cut the skin around them, grip and yank sharply towards ...

Yamabe finally found something to be passionate about: fish fins. To date, she has collected around 40,000 tail and pectoral fins from at least 100 fish species, which she makes into key chains ...

But that's what happened in 1938, when a South African museum curator named Marjorie Courtenay-Latimer spied a bizarre creature with thick scales, unusual fins, and an extra lobe on its tail ...