A group of kittens is called a "kindle".
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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Placing alcohol on a scorpion's back will make it go crazy and fatally sting itself.
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How does a shark find fish? It can hear their hearts beating.
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There are some species of snails that are extremely venomous.
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In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
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Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
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