2014-08-01 • 15 min
Experimenters Grace and Imogen meet a gymnast and find out why our knees are so special.
Katrina Bryan
Nina
Lewis MacLeod
Felix (Voice)
Kelly Harrison
Belle (Voice)
Patrice Naiambana
Luke (Voice)
Siobhan Redmond
Ollie (Voice)
Sharon Small
Bud (Voice)
