Since it first opened its doors in 1931, Chester Zoo has been a matchmaker to many of its inhabitants. But once they have babies only a handful of couples end up staying together. In this compilation episode, Chester’s Penguin Island is home to one of the most enduring love stories in the zoo. At 22, Rudd is the oldest penguin on the island and has been with his partner Spike for over 15 years. They’re inseparable. Silvery gibbon Alvin is keen to get close to his partner Tilu again, but ever since they had a baby together, young Eko has proven a bit of a passion killer. There’s also Diego and Icana, great otters and best of friends, and sloths Tina and Rico, who spend up to 18 hours a day asleep.
The Secret Life of the Zoo – Wednesday 8pm on Channel 4