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") ...
Paleontology & Fossils
Mar 13, 2023
2
455
About 360 million years ago, in the shallow subtropical waters above what is now the city of Cleveland, an armor-plated fish many believed to be up to 30 feet long ruled the seas.
Paleontology & Fossils
Mar 1, 2023
0
754
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.
Plants & Animals
Mar 23, 2023
0
33
Our capacity to care about others may have very, very ancient origins, a new study suggests.
Plants & Animals
Mar 23, 2023
0
70
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 ...
Evolution
Mar 16, 2023
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71
A new study in Genome Biology and Evolution reveals that egg yolk proteins may have been co-opted to provide maternal nutrition in live-bearing sharks and their relatives.
Evolution
Mar 16, 2023
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61
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.
Plants & Animals
Mar 13, 2023
0
38
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 ...
Plants & Animals
Mar 13, 2023
0
301
Scientists and policymakers have voiced growing concerns about the decline of global squid stocks, but little has been done to date to target squid fishing activities that are expanding into unregulated spaces, according ...
Ecology
Mar 10, 2023
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88
Changing environmental conditions may threaten marine mammal populations by making it harder to find prey, and a new study shows how small, gradual reductions in prey could have profound implications for animal populations.
Plants & Animals
Mar 8, 2023
0
59
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.
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