3 JANUARY: LONDON, ENGLAND – Two Sumatran tiger cubs play next to a board placed in their enclosure during a photocall at ZSL, London Zoo’s annual stocktake. Zoological Society of London (ZSL), is home to over 650 different species of animal, which all need to be counted and catalogue during the annual stocktake, which is a compulsory requirement for their zoo licence.

(Photo: Dan Kitwood/Getty Images)