Our cameraman films a pair of mating leopard sharks and a cuttlefish laying her eggs. There’s also a rare glimpse of a tiger-tail seahorse and some bizarre pufferfish behaviour.

Ocean predators attack sardines in feeding frenzy

Oceans cover 71 percent of the Earth's surface - that's a lot of space to explore! From estuaries to coral reefs and kelp forests, Earth Touch's underwater crew is telling the stories of the deep blue - one extraordinary dive at a time