ZSL London Zoo held its annual weigh-in, where every mammal, bird, reptile, fish and invertebrate across the zoo is weighed and measured.Featured are the ring-tailed lemurs, a giant hooded Katydid, a Vietnamese land snail, capybaras, a Galapagos tortoise and Humboldt penguins.

ZSL London Zoo held its annual weigh-in, where every mammal, bird, reptile, fish and invertebrate across the zoo is weighed and measured.Featured are the ring-tailed lemurs, a giant hooded Katydid, a Vietnamese land snail, capybaras, a Galapagos tortoise and Humboldt penguins.