Question

How did King and Janik discover that dolphins use whistles to identify each other?

A
They compared the recordings of individual dolphin whistles to recordings of birdcalls.

B
They recorded individual dolphin whistles in the wild and studied them in their laboratory.

C
They followed the same dolphin group for years until the individual dolphins trusted humans.

D
They played the recordings of unique whistles to dolphins and listened as individual dolphins responded.

Answer 1

In one experiment, after recording the whistles of individual dolphins, King and Janik played the isolated recordings back to the dolphins. When they played back a copy of an individual dolphin's unique whistle, the same dolphin responded in kind by whistling.

Step-by-step explanation:

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