Tim Laman / Bower of the Golden-fronted / Yellow-fronted Bowerbird (Amblyornis flavifrons). Foja Mountains, Papua, Indonesia, 2008. (taken during Conservation International Rapid Assessment Program expedition)

Tui De Roy / Southern Royal Albatross (Diomedea epomophora) gamming group courting as part of multi-year mate selection, Moubrey Ridge, Campbell Island, New Zealand

Tui De Roy / Southern Royal Albatross (Diomedea epomophora) gamming group courting as part of multi-year mate selection, Enderby Island, Auckland Group, New Zealand

Tui De Roy / Southern Royal Albatross (Diomedea epomophora) gamming group courting as part of multi-year mate selection, Moubrey Ridge, Campbell Island, New Zealand

Paul D Stewart / Great Argus Pheasant feather (Argusianus argus). Composite photograph of Argus secondary wing feather left and right Fig 56. Page 143 Vol II of Charles Darwin 'The Descent of Man and Selection in Rela...