‘It could probably curl up quite comfortably in your lap’

A rare and dog-sized dinosaur, the size of “a collie”, from America’s Morrison Formation, is on display at the Natural History Museum in London.

After being wrongly categorised when it was found, it has now been revealed as a new species.

This tiny dinosaur would have roamed North America during the Late Jurassic period, around 145-150 million years ago, beneath the feet of some of the largest and most famous dinosaurs.

But what makes this discovery significant? We’re joined by Natural History Museum palaeontologists Professor Paul Barrett and Professor Susannah Maidmen.

Also in this episode:

-UK to buy F-35 stealth jets that can carry US nuclear warheads

-Exmoor estate sees resurgence of rare butterfly once on brink of extinction

-Emotional attachment to music helps us remember better

-Briton becomes first triple amputee to sail solo and unsupported across the Pacific

-The mystery of dead eyeless wasps discovered in Southern Australia’s Nullarbor Caves

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Rare dog-sized dinosaur species revealed for the first time