Celebrating 100 of your fantastic "Photo of the Day" images
Six months after a rare tiger cub died, London Zoo's new triplet cubs have been given a clean bill of health.
A female osprey which produced two chicks last year returns to the same nest in the Lake District.
The European Parliament has approved new legislation to stem the spread of invasive species such as "killer" shrimp or Japanese knotweed.
CCTV cameras capture the first osprey egg of the season to be laid at a reserve in the south west of Scotland.
A project to nurture and protect rare breeds from extinction on the Isle of Man is celebrated with a special set of stamps.
Birds learn to choose the the best building materials for their nests, rather than building from instinct, say scientists.
Keepers at Colwyn Bay Welsh Mountain Zoo released four seals back into the sea off Llandudno after they had been rescued as young cubs and nursed back to health over the winter.
The 60-mile stretch of waters along mid Wales' stunning coastline provides the perfect breeding ground for Europe's largest population of bottle nosed dolphins.
Staff at Edinburgh Zoo are hoping it will be third time lucky after giant panda Tian Tian was artificially inseminated.
The combination of fire and extreme weather events could accelerate tree mortality in the Amazon, a study suggests.
Moving a dinosaur across the US
Edinburgh Zoo's giant Panda Tian Tian is artificially inseminated.
People in the Americas have been treated to a rare "blood moon" lunar eclipse. Jonathan Amos explains the science behind the colour change.
A wild male marmoset is filmed embracing and caring for his dying female partner.
The young huntress and her golden eagle
Work is under way to protect one of the UK's rarest seabirds which breeds on a shingle beach in north Wales.
More than 1,098kg (2,421lb) of fish is removed from a Wiltshire canal in a bid to stop illegal fishing.
As puffins return to Alderney following the devastating winter weather, conservationists demand tougher laws.
A bird thought to be the world's oldest breeding osprey lays her 69th egg at a Perthshire nature reserve.