Matt Skilton faces a prickly problem - how on earth do you pet a baby porcupine? Meanwhile, Rani Price helps set up an experiment to see what kind of tea the gorillas like best. Then there's a tortoise that's also a leopard (though that's not as strange as the one that's also a pancake). And the baby bison are in for a big day when they meet their dad for the first time. The Roar Ranger gets a nasty niff when she meets the monkeys with bacteria burps, and there's the latest news from the tiger cub twins.