Today, the threat of a deadly disease forces the keepers to take action. Like many of the park’s animals, the ankole cattle have to be checked for tuberculosis, which is a huge challenge for the biosecurity team and the keepers. The keepers usually keep their distance from the animals' long sharp horns, but testing means being up close. First, they have to be herded from the field to the testing site and through a crush. The unpredictable ankole cattle have never walked through this equipment before, so the keepers aren’t expecting it to be easy. Will the animals co-operate, and will there be any signs of TB?

Elsewhere in the park, there’s an odd sound in the otter enclosure – silence. Somali and Hamish are normally some of the most vocal animals, but they are unusually quiet, and there is evidence that Somali isn’t eating. These otters normally have a voracious appetite, so Somali is rushed to the vet for an urgent investigation.

Ben and Jean Johansson are on a mission to get the animals moving today. Ben is with Jesse and Tallulah the tapirs, and Jean tries to tempt some chickens through a fun obstacle course. Meanwhile, Kate finds out why the giant tortoises need to have their shells measured every year. Show less