The Birds and The Bees
TED Radio Hour
00:00
The Parasitic Bird's Identity
Cuckoos can mimic other eggs, like lay them so that they match down to the shade of color. How do they know? That's a great question. We don't necessarily have a full-on answer to that as far as the cognitive parts of it and the physiological parts of it. The bird world is really where we see some of the best fathering, I would argue.
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