Word: prawn
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Dates: during 2010-2019
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...bite of their clients, and they often chase the female around in a threatening manner. To prove that this was indeed the physical scolding it appeared to be, Bshary and colleagues ran a tank experiment in which they introduced a plate of normal fish flakes (which wrasses like) and prawns (which wrasses love) to two fish. If either fish ate a tasty prawn, the researchers removed all the food from the tank. Sure enough, when the female nibbled the prawns, the male wrasse went berserk. As the experiment progressed, the females became less likely to eat prawns (but the males...