Shark Classification. Introduction To Classification. Classification is the act of distributing things into classes or categories of the same type. . About Classification. Aristotle was the first to form a useful form of classification in 300 B.C.
Classification is the act of distributing things into classes or categories of the same type.
*Cartilaginous- skeleton of cartilage
*Aquatic- lives in water
*scales/denticles- small flat plates that fit together to form skin covering (tooth shaped)
*lateral line- sensory organs along side of fish to help navigate and sense other creatures
*gill filaments-threadlike; part of gills that are filled with blood vessels; where they basically breathe
*gill cover- bones (cartilage) of fish’s head that cover gills
This organism belongs to the family Rajidae.
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This is the whale shark. It belongs to family rhincodontidae. Like all sharks, the whale shark is cold-blooded. The whale shark can be 18 meters in length and exceed 10 tons! The whale shark mainly feeds on plankton, sardines, squid, and anchovies. It resides mostly in Western Australia. Whale sharks are often confused with whales because of their size and non-violent tendencies.
This organism is in family pristiophoridae.
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This is the cow shark. It is part of the family Hexanchidae. Cow sharks can be about 3 to 4 meters long. They usually live deep down in warm, temperate seas. Cow sharks can have anywhere from 22 to 108 pups at a time!
Classification helps scientists characterize traits and specifics on organisms.
We use classification to put all of earth’s known organisms into group and families.
Dichotomous Keys help us to figure out what genus and species an animal falls under.
For example, if a new organism was discovered, a scientist would go through a Dichotomous Key to try to find out the subject’s kingdom, phylum, class, order, family, genus, and species.