rogs, salamanders, and other amphibians aren’t known as faithful lovers. They mate, then they scram. But researchers have now identified one species of poisonous Peruvian frog—Ranitomeya imitator—that has given monogamy a shot, the first amphibian known to do so. What’s more, the frogs seem to be doing it for the kids: Limited resources keep them close to their offspring-and to each other-a condition that may have influenced the evolution of parenting strategies in other species as well. Leer más.