For These 7 Species, Sex Changes Everything

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Animals and plants come in an amazing variety of shapes, sizes and colors. And in some species, they take it pretty extreme to deal with the battles within and between sexes.

Hosted by: Michael Aranda

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Elephant Seals and Cichlids:







Moas:


Blue and Great Tits:



Orchids:





Sticklebacks:


Rusty Tussock Moths:




Spoon Worms:




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