When evolution misses the mark

Establishing the facts in the sex–gender debate

A new book of bird photography celebrates not only the avian world, but the photographers using creative techniques to produce original artworks, from characterful studio portraits to eye-catching abstracts, writes Graeme Green

IT HAS BEEN DONE ON LUNDY (size: 4.45km²), Ruapuke Island (16km²) and South Georgia (3,500km²), but now conservationists want to eliminate non-native, invasive predators from much, much larger sites:

THE BLACK-CAPPED chickadee is wonderfully onomatopoeic. When the diminutive songbird, which is Canada’s answer to the great tit, spots a great-horned owl perched in a tree, it broadcasts a shrill ‘chi

Jenny Ackland criss-crosses the world to take a look at the clever ways that humans and animals can live together.

John Miles rounds up the latest releases…