A SEX-MAD koala recruited from Scotland to teach his counterpart in an Austrian zoo about the birds and the bees is finding himself very much in demand.
When romantic music, erotic movies and aphrodisiac food failed to entice their male koala, Bilyarra, to mate with female Mirali, staff at Vienna's Schoenbrunn Zoo sought the help of Edinburgh Zoo's resident stud, Chumbee.
The five-year-old male koala and his super-active libido arrived on loan in the Austrian capital in March and zoo managers are confident they will soon be hearing the patter of tiny koala paws after Bilyarra started to get in on the action.
"Chumbee hasn't stopped since he got here," said Schoenbrunn Zoo manager Helmut Pechlaner.
"It has been almost non-stop sex in the koala enclosure ever since, and now even our own male is joining in."
Zoo vet Hanna Vielgrader said Chumbee could not restrain himself.
"The only break is to eat or sleep, other than that there's no stopping them," she said.
Several other zoos have been in touch in the hope Chumbee might be able to invigorate their koala colonies.