Zoo keepers Bernie Corbett and Owen Shrewsbury (right) weight a Mangalista ...

Zoo keepers Bernie Corbett and Owen Shrewsbury (right) weight a Mangalista ...

Camel keeper, Mick Tiley weights Neomie during the annual weigh-in at ZSL L...

Penguin keeper, Jess Ray weights Humboldt penguins during the annual weigh-...

Penguin keeper, Jess Ray weights Humboldt penguins during the annual weigh-...

Penguin keeper, Jess Ray weights Humboldt penguins during the annual weigh-...

Penguin keeper, Jess Ray weights Humboldt penguins during the annual weigh-...

Penguin keeper, Jess Ray weights Humboldt penguins during the annual weigh-...

Penguin keeper, Jess Ray weights Humboldt penguins during the annual weigh-...

Camel keeper, Mick Tiley weights Neomie during the annual weigh-in at ZSL L...

Camel keeper, Mick Tiley weights Neomie during the annual weigh-in at ZSL L...

Camel keeper, Mick Tiley weights Neomie during the annual weigh-in at ZSL L...

Camel keeper, Mick Tiley weights Neomie during the annual weigh-in at ZSL L...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...

Lion cubs, Mali, Syanii and Shanti during the annual weigh-in at ZSL London...