Female guppies risk their lives to avoid too much male attention
...attention from males. Observing wild population of guppies in the rainforest of Trinidad, the researchers found that female guppies swim in habitats that contain few males ?but many predators. "Male guppies spend most of their time...Fish evolve a longer lifespan by evolving a longer reproductive period, researchers find
... have studied for long, the researchers found that guppies living in environments with a large number of pred...ors have adapted to reproduce earlier in life than guppies from low-predation localities. Moreover, when reproduction ceases, guppies from high-predation local......heir ongoing investigations of the life history of guppies confronting different predatory threats in Trinida...escence, including declines in reproduction. Since guppies are livebearers that provide no postnatal maternal care, Reznick et al. predicted the populations wo...