Stay or stray? Study delves into sexual behaviour

Scientists said Wednesday they had amassed the first evidence to back theories that people fall into two broad categories—promiscuity or faithfulness—when it comes to sex.

Fishing selects small, shy fish for survival

Fishing primarily removes larger and more active fish from populations. It thus acts as a selection factor that favors shy fish, as a recent study by the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) ...

Sex, flies and videotape

On a hot summer day, in a darkened chamber, a video camera follows a couple as it engages in nature's oldest game—courtship. The male sings and chases after the female when suddenly a long tubular organ emerges from her ...

Researchers discover new sex hormone

When University of Ottawa biologists Kim Mitchell and Vance Trudeau began studying the effects of gene mutations in zebrafish, they uncovered new functions that regulate how males and females interact while mating. We sat ...

Male fish can thank genes for colourful looks

Striking traits seen only in males of some species – such as colourful peacock feathers or butterfly wings – are partly explained by gene behaviour, research suggests.

Oh deer: monkey caught in flagrante delict-doe

Scientists on Tuesday revealed the "highly unusual" behaviour of a male monkey filmed trying to have sex with female deer in Japan—a rare case of inter-species nookie.

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