Latest Sexual dimorphism Stories
Male rat pups have more of a specific brain protein associated with language development than females.
According to a new study in the journal Trends in Ecology and Evolution, determining if certain extinct animals had sexually selective traits is possible, despite the fact that we cannot observe their behavior.
An international research group, led by the University of Barcelona, has found there is no evidence to support the association between facial shape and aggression in men.
Researchers were able to show that zebrafish males and females both wear their brightest colors while wooing a mate.
Battles of sexes shown to spur adaptive sex differences
Men and women may be equals, but they often behave differently when it comes to sex and parenting.
Up until now it was unknown whether males of the great bustard (Otis tarda), an emblematic bird in Spain and endangered at a global level, transmit information on their weight, size, and age through their plumage.
It's a question that has puzzled scientists for years: why, in some species of spiders, are the females so much larger than their male counterparts?
Male physical competition, not attraction, was central in winning mates among human ancestors, according to a Penn State anthropologist.
In most animal species, males and females show obvious differences in body size.
The Greater Painted Snipe (Rostratula benghalensis) is a species of wading bird found in the marshes of Africa, India and southeast Asia (Sulawesi). Its preferred habitat are fringes of reed beds along shorelines of marshes, swamps, ponds and streams. The Greater Painted Snipe is not related to true snipes, and differs in habits, flight and appearance. This is a medium-sized bird with a long reddish-brown bill that is slightly downward curved at the tip. It has a unique white or pink eye...
- A trick or prank.