Animals Behaving Badly is on BBC One at 8pm.

In the first of three episodes, Liz Bonnin meets animals that will stop at nothing to find a mate. On the American plains, she learns how the behaviour of prairie dogs ensures they have healthy pups.

Killed By My Debt is on BBC One at 9pm.

Fact-based drama telling the story of a teenage motorcycle courier, whose spiralling levels of debt led to tragedy.

Live Well For Longer is on Channel 4 at 8pm.

Topical health series presented by Kate Quilton and Tamal Ray. This edition looks at a hangover-free version of alcohol.

Picnic at Hanging Rock is on BBC Two at 9pm.

Second episode of the mystery drama. A search for the missing pupils and the governess proves fruitless, which leaves Hester trying her best to contain mounting hysteria at the school.

Mortimer and Whitehouse, Gone Fishing is on BBC Two at 10pm.

The comedy duo fish at Bridge Pool in Dorset, before Paul persuades Bob to charter a boat out to sea in search of Sea Bass.