Penguins, squirrel monkeys and giant Galápagos tortoises are just some of the creatures who had their vital statistics recorded at ZSL London Zoo’s 2021 annual weigh-in today (Thursday 26 August).
With different personalities and temperaments to take into account, keepers have to use ingenious tactics to entice the animals to stand up and be measured; ’tricking’ penguins into walking over scales as they line up for their morning feed and encouraging squirrel monkeys onto the scales through fun training activities.
