We don't take reservations from under-25s and would challenge groups of males staying together.
Some species display in leks, which are designated locations where groups of males perform.
We're looking specifically for competitive groups, large groups of males that form frequently at this time of year.
The cameras capture two groups of males as they fight not with physical force but with a sort of vocalized taunting.
Mating herds are seen in eastern Australia, but groups of males in leks are observed in western Australia Shark Bayy), where they produce complicated whistlelike songs.
But on 114 occasions Dr Mitani's colleague Sylvia Amsler watched large groups of males strike out on silent, single-file patrols to the fringes of their territory.In this section Killer instincts Watching your health Rose-coloured spectacles?
Groups of males and females were exposed sub-acutely, for 21-days.
Female-only groups were "Teen or Younger" 65% of the time, while groups of males were "Teens or Younger" only 36% of the time.
To establish fertile and subfertile groups of males in couples presenting with endometriosis-related infertility in the female.
Chimpanzees live in well-defined colonies, and groups of males patrol the borders of each colony's territory.
The study is set to continue, with tests on bigger groups of males and females, aged 16 and over, about to begin.
