Whales were being hunted to extinction, when in 1967, a biologist realised they could sing. It changed the perception of whales and helped found the modern conservation movement. Show more
Discover 11,128,835 listings and 279,524 playable programmes from the BBC
Whales were being hunted to extinction, when in 1967, a biologist realised they could sing. It changed the perception of whales and helped found the modern conservation movement. Show more