ZSL London Zoo have held their annual weigh-in to records animals’ vital statistics. Penguins, squirrel monkeys and camels are just some of the animals who had their vital statistics recorded. Humboldt penguin chick Bobby, who hatched at the Zoo in April, took to the scales for his first weigh-in while aquarist Colette Gibbings dove into the Tiny Giants aquarium to measure the growth of the Zoo’s Critically Endangered brain coral. Patient keepers encouraged the Zoo’s troop of Bolivian black-capped squirrel monkeys onto the scales one by one by offering up a few tasty treats while Bactrian camel Noemie - the heaviest animal at the Zoo - was coaxed onto her weigh-board by camel keeper Mick Tiley. Elsewhere, Sumatran tigress Gaysha stretched out against a giant ruler, eight weeks after giving birth to three Critically Endangered tiger cubs. With more than 14,000 animals in their care, ZSL London Zoo’s keepers spend hours throughout the year recording the heights and weights of all the animals.The information is vital in helping the zoo monitor the animals health and wellbeing. The annual weigh-in information is then added to the Zoological Information Management System (ZIMS) a database shared with zoos all over the world that helps zookeepers to compare important information on thousands of endangered species.