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This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Humans can recognize each other by voice alone. I sound different from other 60 second science

reporters, for example. In fact, lots of non-human animals, of all types, use voices to distinguish

familiar individuals, including frogs, fish, lemurs, and penguins.

In that unique audio fingerprint extends to a sound you may have heard in the forest on occasion.

The Drumming of a Woodpecker

Researchers recorded multiple drum rolls

from 41 great-spotted woodpeckers, colorful, red, white, and black birds,

living in Polish forests. They then used audio software to analyze them, and they found that

the length of the drum rolls and the spacing between beats varied enough from bird to bird to

tell the woodpeckers apart by drumming alone,

the studies in the journal, Plus One.

The scientists say this fact might be useful to woodpeckers, in identifying each other,

and to conservation biologists, trying to tease one bird from another in a recording, for example,

to count individuals in a given area.

The bird's headbanging could thus do away with that research headache.

Thanks for listening.

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