Tag Archives: National Geographic

Butterflies fight?

By Patto | Published: January 24, 2010
Yes, they do happen. In the species of the gender Hamadryas (picture), the males attack who enters in their territories claping their wings. “The clapping noise is an advice to the invader to quit the fight”, says biologist André Freitas, from Campinas State University, SP, Brazil. And worse: it is not rare that some of [...]
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Highly sexist damselflies

By Patto | Published: January 24, 2010
For natural selection, it is not enough to survive. It is also needed to leave descendents. “And among the dragonflies and damselflies, this idea is confirmed with great determination” says the biologist Cláudio Patto, graduate student at Campinas State University, SP, Brazil. Dragonflies’ females store the sperm until fecundation, what happens only when she lays [...]
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