TV Highlights Thursday
This new three-part nature series follows the fortunes of three smaller creatures who fight the odds to survive, beginning with the tiny grasshopper mouse, which takes on the Sonoran Desert's deadliest scorpions and dodges the hovering Harris Hawks.
Supersize v Superskinny
Channel 4, 8.00pm
Joanne Allen's serial dieting hasn't helped, and she now weighs almost 20 stone. She travels to Las Vegas to meet a 37 stone woman and finds out how the area has become a blackspot for bariatric surgery. With Christian Jessen (right).
Ear to the Ground
RTE One, 8.30pm
Ella McSweeney goes to Navan, where St Joseph's Convent is waging war against a fast food chain's plans to open a branch at the school gates, while Helen Carroll meets Dr Temple Grandin, a livestock expert whose insights have transformed the industry.
When Jack and Nikki (Emilia Fox, right) head north to Scotland to investigate the brutal murder of a lap dancer found dumped in a forest, they clash with two local detectives. But when they discover more remains it becomes apparent that a serial killer's at large.