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Fish first evolved from work-like chordates around 500 million years ago. The first fish were small and jaw-less. They filtered food through holes where the mouth would be. Eventually these fish developed jaws and many of them started hunting other fish and animals. That is how modern fish diversified.
The first fish and vertebrates were the Ostracoderms,
which appeared in the Cambrian
Period, about 510 million years ago, and became extinct
near the end of the Devonian
, about 377 million years ago.
Fish do not represent a single monophyletic group. Therefor, the evolution of the fish is not studied as a single event. But, the first fish were jawless fish.
Placoderms were among the first jawed fish.
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How did fish antifreeze originate?
Fish antifreeze originated from an ancestral trypsinogen gene.
What was the first animal onearth?
A bird or a fish.
Which type of the animal is fish?
The type of animal that a fish is is fish. Fish have their own family that is separate from land animals, birds and amphibians.The first fish lived around 510 million years ago.
What animal survived mount st Helen's first eruption?
fish
What is an animal with the first letter in its name f?
fox, ferret, fish,
Is a fish a animal or a fish?
They are a ANIMAL obviously
Which animal that Allah created first?
Fish... _____________________________________________________ Nothing is mentioned in Quran; Muslims holy book; that assures which animal is created first by Allah.
What animal will eat fish from fish pond?
A animal that is bigger than the fish that the animal is trying to catch
What is the differant between first class and second class?
proteins from animal origin are called first class proteins. meat and fish are first class proteins because they contain all the essential amino acids (which cannot be made by the body), plant proteins are called second class proteins.
First animal Merlin changes wart to?
Merlin turned the Wart into a fish
Why are meat and fish low in fiber?
Fibre is essentially a plant origin substance.Fish and meat are animal foods.Fibres are the undigested residue in food in nutrition point of view.Most of the animal foods are digested and absorbed leaving little residue as they are essentially the same things which build our body like the body of fish or animal(ie.meat)
What is to fish as air is to animal?
Water is to fish - as air is to animal.
