Bert Haanstra

A mysterious diver hiding in Amsterdam’s canal system embarks on a rampage of gruesome murders, terrifying city officials and leaving few ...

In Burgers Zoo the new residence of the gorillas is put in operation. Also the country of origin, Cameroon, is visited.

A subtle account of the chimpanzees’ behaviour in Burgers Dierenpark in Arnhem, on the occasion of the publication of the book Chimpansee ...