A red squirrel at a conservation centre in Norfolk stuns wardens by producing her 48th kitten in six years.
The mystery of a bizarre quacking sound often heard in the Southern Ocean has finally been solved, scientists report.
BBC Scotland's environment correspondent, David Miller, meets the scientists helping to bring wildlife criminals to justice.
The Scottish SPCA's new national wildlife rescue centre released nearly 2,800 injured animals back into the wild in 2013.
A major wild salmon producer says it is giving up the culling of seals after protests at a harbour in the north east of Scotland.
A leading British naturalist accuses Malta of failing to prevent large-scale illegal shooting of migratory birds by hunters.
Wildlife expert Chris Packham and Sergei Golovkin from Malta's Wild Birds Regulation Unit discuss the number of illegal bird hunters operating in Malta.
The number of water voles has declined by a fifth in the UK since 2011, recent figures suggest. But in one small part of Sussex, the water vole is surviving as Roger Finn reports.
Female insects with 'penises' have been discovered in Brazil - the first example of an animal with sex-reversed genitalia.
Ancient grasses from the Pampas of Argentina were preserved when asteroids struck the area, scientists report.
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.