Why are some animals asymmetrical?

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Offline thedoc

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Why are some animals asymmetrical?
« on: 23/03/2016 16:46:04 »

People are not perfectly symmetrical (especially internally) and I suppose animals are like that too. But how does evolutionary biology explain how fiddler crabs have one claw very much bigger than the other. If one big claw is "good" wouldn't two big claws be "better"? Are there other species that are so blatantly externally asymmetrical?

Regards
Gary


Asked by Gary Shavit


                                        Visit the webpage for the podcast in which this question is answered.

[chapter podcast=1001320 track=16.03.22/Naked_Scientists_Show_16.03.22_1004914.mp3]  ...or Listen to the Answer[/chapter] or [download as MP3]

« Last Edit: 23/03/2016 16:46:04 by _system »