Called “feathered apes” for their simianlike smarts, crows use tools, understand physics, and recognize themselves and humans. But new research suggests that the brainy birds may be even smarter than was previously thought.
An Introduction to Behavioural Ecology (Paperback)
The effects of copulation duration in the bruchid beetle Callosobruchus maculatus \nEdvardsson and Canal (2006) Behavioural Ecology 17: 430-434 Females did not suffer from long copulations but instead experienced increased lifetime fecundity. Ejaculate size increased with copulation duration. Males that mated first and had long copulations were relatively unsuccessful, and the copulation duration of the second male to mate did not have a significant effect on sperm precedence