What kind of animal are fish?
Fishes are a group of animals that are completely aquatic vertebrates that have gills, scales, swim bladders to float, most produce eggs, and are ectothermic. Sharks, stingrays, skates, eels, puffers, seahorses, clownfish are all examples of fishes.
Is a fish a mammal or a reptile?
Some belong in clades that contain animals that are not fish at all. However, whatever biologists know about fish, they know that they’re not mammals. There are over 30,000 species of fish.
How would you describe a fish?
Fish and Fishes Fish are aquatic vertebrate animals that have gills but lack limbs with digits, like fingers or toes. Recall that vertebrates are animals with internal backbones. Most fish are streamlined in their general body form.
Are humans fish?
The way this happens only really makes sense when you realise that, strange though it may sound, we are actually descended from fish. The early human embryo looks very similar to the embryo of any other mammal, bird or amphibian – all of which have evolved from fish.
Are sharks fish or not?
Sharks are fish. They live in water, and use their gills to filter oxygen from the water. Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish.
What is special about a fish?
Fish have developed special senses, too. Because water transmits sounds, disperses chemicals, and conducts electricity better than air, fish rely less on their vision and more on their hearing, taste, and smell. Many can detect motion in the water using a special row of scales with sensors known as the lateral line.
What is a fact about fish?
Here is a list of fun facts about fish: Fish have been on the earth for more than 450 million years, whereas mammals have only been on earth for roughly 200 millions years. There are over 27,000 identified species of fish on the earth and an estimated 15,000 fish species that have not yet been identified.