Squids are marine animals, and since they travel together like fish, they are probably called a "school" when they are together, as in, "a school of squids."
It's interesting that so many different names are used for groups of different wildlife. For more information, please see the related links, below.
A pack of squids
The collective name for a group of sailors are called a crew
There is no collective name for a group of platypuses. Platypuses are solitary animals and do not live or move in groups.
When squid gather in a group, they usually exhibit "shoaling" behavior, which is similar to "schooling" except not uni-directional. So you can call them "a shoal of squid".But obviously a squad of squid would be more fun. So use that instead. Since collective nouns are an informal part of language, if enough people use it, it becomes the standard.
The collective name is a bed of clams.
The collective name for badger is 'sett'
The name is a collacine
There is no standard collective noun for colossal squid. There is little known about this creature, even the fact that they may form groups.The colossal squid must mate to reproduce so the appropriate collective noun may be a pair of colossal squid.
The collective noun is a company of firemen (firefighters).
gear
The collective noun for a group of hares is a drove.
A group of spies is called a "Nest"
A group of goldfinches is called A CHARM