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the name of a group of sharks is a school or shoal.
sharks
the name for a group of sharks is a shiver
sharks
Thresher Sharks.
umm
Blind sharks got their common name because they close their eyes when they are taken out of the water.
The more common name for group 7 elements is the halogens
The common class name for sharks and rays (they both belong to the same class, the Cartilaginous Fish), is Chondrichthyes.
One thing that can happen is, if it is common in multiple parts of the world, it is given a name by one group of people and then given another name by a different group. Then if these two groups interact with one language, then that language might have two words for that animal.
The collective nouns for sharks is a school of sharks, a shoal of sharks, and a shiver of sharks. I like shiver a lot. If there is a specific collective noun for the great white shark, I do not know what it is.
Because it is an animal, and not the name of an animal such as "George".