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A Feas Flying Tree frog stands on a scale during the annual weigh-in at the ZSL London Zoo in London, Britain, 24 August 2017. Zookeepers have gathered their scales and tape measures as they begin the annual animal weigh-in at ZSL London Zoo. From big cats to tiny frogs, keepers spend hours each year recording every animal’s vital statistics, enabling them to keep a close check on their overall well-being. (Photo by Andy Rain/EPA/EFE)

A Feas Flying Tree frog stands on a scale during the annual weigh-in at the ZSL London Zoo in London, Britain, 24 August 2017. Zookeepers have gathered their scales and tape measures as they begin the annual animal weigh-in at ZSL London Zoo. From big cats to tiny frogs, keepers spend hours each year recording every animal’s vital statistics, enabling them to keep a close check on their overall well-being. (Photo by Andy Rain/EPA/EFE)



A fleas flying tree frog sits on a photographers lens during a photocall for the annual weigh-in at London Zoo in London, Britain August 24, 2017. (Photo by Neil Hall/Reuters)

A fleas flying tree frog sits on a photographers lens during a photocall for the annual weigh-in at London Zoo in London, Britain August 24, 2017. (Photo by Neil Hall/Reuters)



A Fea's Flying Frog is weighed on a scale during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)

A Fea's Flying Frog is weighed on a scale during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)



A penguin is weighed on a scale during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. With more than 17,000 animals to weigh, the exercise is carried out on a regular basis by zookeepers as a way of keeping track of every animals health and wellbeing. (Photo by Dan Kitwood/Getty Images)

A penguin is weighed on a scale during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. With more than 17,000 animals to weigh, the exercise is carried out on a regular basis by zookeepers as a way of keeping track of every animals health and wellbeing. (Photo by Dan Kitwood/Getty Images)



A Humboldt penguin is weighed on scales during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)

A Humboldt penguin is weighed on scales during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)



A penguin follows the sponge of a keeper as she clean the glass on an enclosure during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)

A penguin follows the sponge of a keeper as she clean the glass on an enclosure during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)



A Humboldt penguin is weighed on scales during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)

A Humboldt penguin is weighed on scales during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)



Asiatic lion, “Heidi” stretches on her hind legs for meat in their enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. During the weigh-in, animals across the zoo have their vital statistics recorded including their height and weight and the information is then shared with zoos across the world to help zookeepers compare important information on thousands of endangered species. (Photo by Chris J. Ratcliffe/AFP Photo)

Asiatic lion, “Heidi” stretches on her hind legs for meat in their enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. During the weigh-in, animals across the zoo have their vital statistics recorded including their height and weight and the information is then shared with zoos across the world to help zookeepers compare important information on thousands of endangered species. (Photo by Chris J. Ratcliffe/AFP Photo)



An Asiatic lion stands to reach a bag with meat in it during a photocall to promote the London Zoo annual “weigh-in” event.  on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)

An Asiatic lion stands to reach a bag with meat in it during a photocall to promote the London Zoo annual “weigh-in” event. on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)



A female Western Lowland Gorilla stands next to a large measuring stick during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)

A female Western Lowland Gorilla stands next to a large measuring stick during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)



Gorillas sit next to a ruler during a photocall for the annual weigh-in at London Zoo in London, Britain August 24, 2017. (Photo by Neil Hall/Reuters)

Gorillas sit next to a ruler during a photocall for the annual weigh-in at London Zoo in London, Britain August 24, 2017. (Photo by Neil Hall/Reuters)



Kumbuka, a Silverback Western Lowland Gorilla stands next to a large measuring stick during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)

Kumbuka, a Silverback Western Lowland Gorilla stands next to a large measuring stick during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)



Gorilla “Mjukuu” and her baby “Alika” check out a measuring device in an enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)

Gorilla “Mjukuu” and her baby “Alika” check out a measuring device in an enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)



Silverback Kumbuka (L), Gorilla “Mjukuu” and her baby “Alika” check out a measuring device in an enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)

Silverback Kumbuka (L), Gorilla “Mjukuu” and her baby “Alika” check out a measuring device in an enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)



Silverback gorilla Kumbuka is seen in an enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)

Silverback gorilla Kumbuka is seen in an enclosure during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)



Kumbuka, a Silverback Western Lowland Gorilla stands next to a large measuring stick during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)

Kumbuka, a Silverback Western Lowland Gorilla stands next to a large measuring stick during a photocall to promote the London Zoo annual “weigh-in” event on August 24, 2017 in London, England. (Photo by Dan Kitwood/Getty Images)



A squirrel monkey is weighed on a scale during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)

A squirrel monkey is weighed on a scale during a photocall at London Zoo on August 24, 2017, to promote the zoo's annual weigh-in event. (Photo by Chris J. Ratcliffe/AFP Photo)
26 Aug 2017 08:16:00