Around 200 people have streaked through London Zoo to help raise money to protect tigers.
WARNING: Video footage contains some nudity.
Some of the runners wore tiger-style body paint while others had nothing more than their trainers on as they raced around the zoo.
The run supports the Zoological Society of London's global conservation projects and was the third Streak for Tigers event.
As the football-supporting community prepares for the opening of the World Cup in Brazil, even the lions at London Zoo have got involved in the festivities.
London Zoo has announced the arrival of its first ever baby sloth.
Usually it takes sloths up to 10 years to reproduce but 'sneaky' couple Marilyn and Leander surprised staff by mating in just six months.
The new arrival has yet to be named as it is still not known what sex it is.
Three of the world's rarest tigers have been born at London Zoo and it has all been captured on camera.Read the full story ›
The first tiger cub to be born at London Zoo in 17 years is doing well and being looked after by his "doting" mother in a special pen.Read the full story ›
Staff at London Zoo have spent the morning coaxing animals onto scales and measuring tapes in order to record their vital statistics.Read the full story ›
Tammy the anteater is being given her own minder to stop her from being trampled by late-night visitors to ZSL London Zoo this summer.
The 12-year-old tree-climbing anteater is famed for her friendly disposition and fondness for ambling around the public walkways of her exhibit after hours.
But with naturally poor eyesight, she has a tendency for clumsiness, prompting the zoo to take special measures to steer her out of trouble during a series of late-night events.
Keeper Caroline Westlake said: "Tree-climbing anteaters are most active in the mornings and evenings, making Zoo Lates the perfect opportunity for visitors to see Tammy scaling the branches and investigating her home.
"To make sure she can go about her business exploring Rainforest Life, we're providing Tammy with her very own minder to gently guide her around our evening visitors. We're now keeping our fingers crossed that the A-list treatment won't result in any diva-like behaviour!"
Zoo Lates sees thousands of post-work revellers descend on ZSL London Zoo for an adults-only Friday night out.
A baby colobus monkey has been born at London Zoo.
Standing out against mum Sophia’s raven hair, two-week-old colobus monkey Anvil has a completely white coat which will eventually darken as she gets older.
It is named after the small bone in the inner ear, “Anvil” is joining family members Maxilla , Bones and Radius who, following the Zoo’s tradition, were also christened after parts of the skeleton.
World-renowned pianist Richard Clayderman held a 'private concert' today to serenade endangered giant tortoises to try and get them to mate.
Clayderman, whose track 'Ballade Pour Adeline' is one of the biggest selling classical recordings of all time, played the famous tune on a grand piano transported to London Zoo's giant tortoise enclosure.
The zoo's Galapagos tortoises, 70-year-old Dirk and his three female companions, Dolores, 13, and Dolly and Polly, both 17 looked suitably impressed with their private recital. The hope is the romantic music may make them more affectionate.
Counting is underway at London Zoo, as workers conduct the zoo's annual census. Zookeepers across the country have begun the mammoth task of counting each and every animal in their collection for a new year census.