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 ...
When you start thinking about what would make a nice moniker for a fish, first consider what kind of fish are you naming. Betta fish make for excellent, low maintenance pets as do goldfish and guppies ...
It’s a tale of guppies, a five-year investigation, and specifically Prozac and its chief ingredient — fluoxetine. “Even at low concentrations, fluoxetine altered the guppies' body condition ...