Tim Laman / Great Bowerbird (Chlamydera nuchalis) male performing a peripheral display around his bower while holding a red plastic cap. James Cook University Campus, Townsville, Queensland, Australia, Sept 2009

Peter Blackwell / Three-month-old Cheetah cubs playing {Acinonyx jubatus} Masai Mara, Kenya

Yves Lanceau / Domestic dog, English Cocker spaniel, leaping into the air, France

Tim Laman / Carola's Parotia (Parotia carolae) displaying in his display court, an area of ground cleared of leaves with a horizontal perch crossing above, Papua New Guinea

Tim Laman / Western Parotia Bird of Paradise (Parotia sefilata) male performing 'ballerina dance' display for a female, Irian Jaya, Indonesia

Tim Laman / Standardwing Bird of Paradise (Semioptera wallacei) male at his display site in the rain forest canopy, Halmahera, Indonesia.

Tim Laman / Standardwing Bird of Paradise (Semioptera wallacei) male performing a display in the rain forest canopy, Halmahera, Indonesia.

Tim Laman / Standardwing Bird of Paradise (Semioptera wallacei) male performing aerial display - diving back down to tree after a vertical flight, Halmahera, Indonesia