Episode 3

Liz joins scientists on the Great Barrier Reef to witness baby turtles taking their first steps and carries out a live weigh in on young shearwater chicks. Steve finds himself surrounded by stingrays as a team attempt to ultrasound some pregnant females, and over in Mexico's Seat of Cortez, Chris hooks up with whale experts in search for the return of a long lost visitor to these waters, the sperm whale.