>>>>What a word-poor language you have! How about gaggle of geese, mob/crowd/audience of people, school of whales (I think there's another one for dolphins)? There's also mob (of kangaroos/monkeys?), mockery (crows/ravens/magpies?)
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>>>A bunch of whales is a pod, not a school. Only fish come in schools. I don't know what you call an amalgamation of dolphins. Perhaps they too gather in pods, since they are fellow cetaceans. The American Heritage College Dictionary defines "pod" as, among many other things, "A school of marine mammals, such as seals, whales, or dolphins" followed by a question mark for some reason. I don't always trust dictionaries to define biological terms, but these words are not particularly biological.
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>>"Pod" was the word I was looking for. But I'm surprised you send this message, contradicting me, when the very definition you send contradicts your contradiction, to wit : "A school of marine mammals, such as seals, whales, or dolphins". Note - all mammalian. Personally I'd refer to fish as a SHOAL.
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>shoal: 1. a shallow place, an underwater sandbank, 2. shoals hidden dangers or difficulties (Oxford American Dictionary)

This is why I say that people "out there" are really only having some fun with the English language when it comes to "nouns" to refer to collections of living things.
Seems to me that **some** such things have been around for eons and accepted (e.g. a pride of lions) but I really think that things like "a murder of crows" or "a storm of [I forget what it was]" and tens of other similar ones are in the same genre as newspaper headline writers of today, trying to link words to 'actions'. Silliness but harmless (I hope).