The Origins Podcast with Lawrence Krauss cover image

Richard Dawkins: From Selfish Gene to Flights of Fancy

The Origins Podcast with Lawrence Krauss

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Is Flight Good for Insects?

Some bats use frequency modulated cries. So they're using the difference in pitch of their echo to say, ok, that the tha, it senses a down going one,. The first echo to return is the high pitched one. Different frequencies actually travelling at different different sper in the air. And there are other bats that use the dople shift. They so wen when when the insec is flying towards them. When e insects trying a way a, dopt the shift the other way. It's wonderful. Well, as i've always said, biology is just really physics. I'm glad we talked about that, cause i was fastening. But you also point out,

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