About the episode
Competition to win a partner has created both the most extraordinary beauty and life-threatening violence in nature. The stakes could not be higher: without a mate, the journey of life ends here... sometimes literally.
The male of the dazzling, aptly-named peacock jumping spider must pick his way between the bodies of failed suitors for his one chance to win a female’s affections. For the green turtle, it’s the female who risks her life: as males pile in to mate with her, she struggles beneath their combined weight, desperate for a breath of air at the surface.
But few will go as far as one unlikely architect. Diminutive and drab, a male pufferfish compensates for his lack of charisma by building the most complicated and perfect structure made by any animal – a spectacular submarine ‘crop circle’ in the sand – created to get himself noticed by a female.
This episode was first broadcast on Thursday 20th November 2014 on BBC One.