In a simulation or in the wild, where predators are plentiful, male guppies become increasingly drab over generations, pushed by predation pressure toward greater camouflage. So if camouflage ...

When evolutionary biologist John Endler began studying Trinidad's wild guppies in the 1970s, he was struck by the wide variation among guppies from different streams, even among guppies living in ...

For over a decade, giving children ages 2-7 underwater discoveries, Bubble Guppies is still relying on six guppies, going on seven. Molly, Gil, Goby, Deema, Oona, Nonny, and their new friend Zooli ...

Image Courtesy of Francesca Jonica By Francesca Jonica This is an independently submitted op-ed for our Quill section. Views ...