who now make up more than 70 percent of the guppy population. Endler observed these trends in the headwater pools where there are relatively few predators.

Thus, what might lure a female guppy to a male might also lure her into danger. “This is the first significant advance on predatory lures for 100+ years and the first experiment really addressing why ...

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 drabbest males are still faring pretty ...