Homosexuality in the animal kingdom: does it exist, or maybe not, more or less as a proof of the abnormity of lesbians and gays in our society? This question has moved already many minds. For the "warm May", a veterinarian especially researched and reports of her insights: for interested people a unique opportunity for a tour through the Zoo Zürich under this point of view!

The tickets for the tour entitle all-day-entrance to the zoo at the corresponding date.