Animals

A cuckoo perching on a silver birch tree in Derbyshire, UK
Ornithologist Mike Toms answers your wild question.
A young orangutan in Gunung Leuser National Park, Sumatra (Indonesia)
BBC Wildlife contributor Stuart Blackman answers your wild question. 
A Barbary macaque grooming a deer
Is this behaviour an unnatural aberration or is it grounded firmly in biology? 
A hawksbill turtle in the Caribbean
Planet Earth II revealed the perils faced by baby turtles in Barbados, but these are offset by the vigilance of local people, says Carla Daniel.
A brittlestar, known scientifically as Ophiothrix fragilis
Marine biologist Matt Doggett answers your wild question. 
Marine iguanas are an iconic species of the Galápagos Islands
Zoologist Amy MacLeod answers your wild question. 
Machineel tree in the Galápagos Islands
BBC Wildlife section editor Sarah McPherson answers your wild question. 
A Eurasian otter eating an eel in Northumberland
An item on on BBC One's Countryfile in early 2017 suggested there is growing pressure from anglers to cull otters, but Dr Daniel Allen of the UK Wild Otter Trust disagrees.
House martins build their nests from mud
Discover the different ways that mud can be used by wildlife. 
Grevy's zebras in a UK zoo
BBC Wildlife contributor Stuart Blackman answers your wild question. 
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