Critically-endangered Sumatran tiger cubs Zac and Crispin have been enjoying testing out a new swing at London Zoo.<br /><br />The custom-made kit, strong enough to withstand the sharpest of teeth and claws, has been set up by zookeepers for the stripy siblings to practice their balancing and jumping skills.<br /><br />Tiger keeper Tara Humphrey said: “We’re always thinking of new ways to encourage the tigers to use all their natural skills, so we also left a scattering of toys and a stimulating scent trail of their favourite nutmeg and cinnamon to lead them across Tiger Territory towards their new swing-set.”
