How koalas do it

by JOSEPH CASTRO

With a diet based on eucalyptus leaves that are very fibrous and low in nutrition and calories, koalas live a pretty lazy life, spending between 18 and 22 hours a day asleep. But does this lethargy also translate into the bedroom, or do koalas maintain an exciting sex life?

Found throughout the eucalypt woodlands of Australia, koalas are quite solitary animals. Each individual sets up a home range, which can span a few acres to hundreds of acres. Though these home ranges can overlap a bit, the marsupials rarely run into each other. If two territorial males do encounter one another, things can get ugly, but this happens infrequently.

“The fights that the males have are pretty ferocious up in the trees,” said Bill Ellis, a koala researcher with the University of Queensland in Australia. “We think that, by and large, the fighting is a really significant biological event for them, and that’s probably why they are not so common.”

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