Attenborough series captures footage of slugs hanging off branches to mate

Sir David Attenborough under his favourite tree in the British Isles, an ancient oak in Richmond Park. England has more ancient oaks that the rest of Europe combined. Picture: BBC/Silverback Films/Chris Howard

The second episode of David Attenborough’s new BBC series, Wild Isles, has captured footage of slugs mating while hanging off branches.

As the famed naturalist and TV presenter, 96, voices over what he calls the “dream-like” scene filmed in Dartmoor National Park, he reveals the ash-black slugs can grow up to 30cm and are the largest land mollusc of this type in the world.