Big Testes or Big Horns? It’s One or the Other for Male BeetlesPublication: National Geographic News Date: October 16, 2007 View Article
Big horns or big testes? It’s one or the other for maturing male dung beetles looking to ensure reproductive success, a new study suggests.
The finding confirms a theory that beetles have evolved in response to trade-offs between the two traits.
Males of most species either get weapons to guard their access to females or a greater shot at successful insemination when they mate.