On command, just like our pets.
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Having a “memory like an elephant” isn’t an understatement.
We know a lot about these beasts’ intelligence, but their ability to memorize sounds is just starting to come to light.
Stoeger, et. al. / Philosophical Transactions of the Royal Society B
Elephants are known to make trumpeting noises, snorts, and low-frequency rumbles.
And it turns out they can do it on cue.