Poisonous frogs like this Ecuador poison frog (Ameerega bilinguis) are free to evolve louder and more diverse mating calls than non-poisonous species. (Photo credit: Santos et al.)
Poisonous and colourful frogs have more diversified mating calls than their non-poisonous counterparts, a new study shows. Researchers explain that when frogs evolve these kind of anti-predator strategies (bright colours and poison), they decrease the risk of being eaten by predators and are rewarded for more showy mating signals.
Original research paper published in Proceedings of the Royal Society B: Biological Sciences on October 14, 2014.
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