Zookeeper Sarah Dempsey poses for photographers with a waxy tree frog on Jan. 4 during the annual stocktake of animals at England's London Zoo.

 

Waxy tree frogs hail from the savannas, shrub lands and forests of central South America, and have been known to live for up to eight years.

 

The zoo's annual count takes place at the beginning of the year, giving keepers a chance to check on all 750 species of animals residing at the zoo — from stick insects and frogs to tigers and camels.