The ruff is a Eurasian shorebird that has a spectacular lekking behaviour where highly ornamented males compete for females. Now two groups report that males with alternative reproductive strategies carry a chromosomal rearrangement ...
Howler monkeys are about the size of a small dog, weighing around seven kilos, yet they are among the loudest terrestrial animals on the planet, and can roar at a similar acoustic frequency to tigers.
If you are in a special relationship with another person, thank grandma - not just yours, but all grandmothers since humans evolved.
In the ever-competitive mating scene, new University of Otago research has revealed how males of some species revert to deception and disguise in order to lure females.
The varied sex lives of a type of green algae have enabled a University of Adelaide researcher to test a theory of why there are males and females.
A U of T Scarborough study finds that a unique ritual performed by male ring-tailed lemurs may come at a significant physical cost, but it could help their chances in securing a mate.
A new species of bushcricket which mimics dead leaves to the point of near invisibility and sings so loud humans can hear it has been examined for the first time using advanced technologies to reveal the unusual acoustic ...