Oldest sea reptile from Age of Dinosaurs found on Arctic island

For nearly 190 years, scientists have searched for the origins of ancient sea-going reptiles from the Age of Dinosaurs. Now a team of Swedish and Norwegian paleontologists has discovered remains of the earliest known ichthyosaur("fish-lizard") ...

Climate change threatens global fisheries

The diet quality of fish across large parts of the world's oceans could decline by up to 10% as climate change impacts an integral part of marine food chains, a major study has found.

How fishermen benefit from the reversing evolution of cod

Intense fishing and overexploitation have led to evolutionary changes in fish stocks like cod, reducing both their productivity and value on the market. These changes can be reversed by more sustainable and far-sighted fisheries ...

How this little see-through fish gets its rainbow shimmer

You can see right through this little aquarium fish from Thailand: Its skin is almost completely transparent. But when the light hits it just right, its body flickers with shimmering rainbow colors.

Remarkable squirting mussels captured on film

Cambridge researchers have observed a highly unusual behavior in the endangered freshwater mussel, Unio crassus. In spring, female mussels were seen moving to the water's edge and anchoring into the riverbed, with their back ...

page 1 from 4

Fish

Tetrapods

A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).

Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols to the subjects of books and popular movies.

This text uses material from Wikipedia, licensed under CC BY-SA