Chris Packham gets to the bottom of things in the fantastic Evolution. Plus, has reality TV found its next big star? Here’s what to watch this evening
9pm, BBC TwoWhich animal was the first to poo? Chris Packham’s belting biology lesson continues with the story of the bat – and the origins of its insatiable hunger are in the urbilaterian, an animal that floated about in the waters of the Ediacaran period, about 570m years ago. Food entered and exited through one hole … until a vital mutation: “The anus was a breakthrough!” Hollie Richardson
