BBC Home
Explore the BBC
BBC News
Launch consoleBBC NEWS CHANNEL
Last Updated: Wednesday, 28 November 2007, 19:29 GMT
In pictures: Topi behaviour

Topi antelope silhouette (Jakob Bro-Jorgensen)

The research was undertaken in the Masai Mara area of Kenya, in the traditional breeding grounds of the topi.

Topi mating (Jakob Bro-Jorgensen)

Individual females mate, on average, with four males, while some reach 12 different partners. And each male is mated with approximately 11 times.

Females fighting (Jakob Bro-Jorgensen)

Contrary to conventional sexual selection theory, female topi antelope are the aggressive ones.

Topi antelope herd (Jakob Bro-Jorgensen)

Topi antelope come together at one particular time of the year and in one particular place for just over a month to mate. Females are fertile for one day only.

Female topi attacking a male (Jakob Bro-Jorgensen)

It is not uncommon to see males collapsing with exhaustion as the demands of the females get too much for them

Male topi antelope's sex burden
28 Nov 07 |  Science/Nature

The BBC is not responsible for the content of external internet sites

Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit


Americas Africa Europe Middle East South Asia Asia Pacific