Whether he's wading through a river in the Amazon in pursuit of anacondas or rolling through the Savannah with lions and zebras, David Attenborough is constantly turning wildlife enthusiasts green with envy.
Everyone loves watching his nature documentaries on the BBC, although one university academic has this week spoken out in criticism of the much-loved television presenter for neglecting certain aspects of animal behaviour - namely their homosexual tendencies.
Dr Brett Mills of the University of East Anglia has published a study in the European Journal of Cultural Studies, which claims that animals have "complex and changeable forms of sexual activity, with heterosexuality only one of many possible options."
The study focused on three of Mr Attenborough's recent documentaries, concluding that the overriding portrayal of wild animals as heterosexuals may in fact be somewhat wide of the mark.
Pet owners should be aware that animals can display a range of social and sexual behaviours.