Big, Small & Deadly

Dave Salmoni hosts this fascinating look at the ocean's other famous apex predator -- The Killer Whale. Orcas take center stage as one of the most complex and prolific hunters in the sea.

Wildlife expert Dave Salmoni dives into the mystifying world of the jellyfish. He takes a look into an ever-growing phenomenon, known as the jellyfish invasion, and the impact it is having on waterways across the globe.