After maintaining your simulation pool for only one year, you find a significant decline in the number of moderately colored guppies. The brightest males and.
There may be several evolutionary reasons why female guppies prefer flashy males. On the most basic level, the male with the biggest, brightest tail spot....
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Evolution - Part 3 of 7 - Extinction (PBS Documentary)[HD 720p]
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Endler observed these trends in the headwater. Witness for yourself how a new species can evolve. Guppies in the pools just above would. When evolutionary biologist John Endler began studying Trinidad's. WGBH Educational Foundation and Clear. The likely answers may surprise you.
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