In this “curriculum segment,” Jonathan explores the basic biology of sharks and what makes them different from bony fish.

In this “curriculum segment,” Jonathan explores some of the ways that animals in the ocean defend themselves from predators.

In this “curriculum segment,” Jonathan explores cleaning stations on the reef, where animals get cleaned of parasites and infection by other animals.

In this “curriculum segment,” Jonathan explores how animals in the ocean use color, not just for camouflage, but to stand out.

In this “curriculum segment” produced as part of a National Science Foundation grant, Jonathan examines the biology of coral reefs and their importance to the marine ecosystem.

Jonathan meets some playful sea lions in the Galapagos and then ventures to the Mystic Aquarium in Connecticut to learn more about these intelligent marine mammals.

Jonathan visits the largest coral reef in the world--the Great Barrier Reef off Queensland in Australia.

The heartwarming story of a stranded pilot whale who is rescued and rehabilitated.

Jonathan visits the Georgia Aquarium in Atlanta to learn how they take care of the world's largest fish--the whale shark!

Jonathan travels to Andros in the Bahamas to investigate mysterious ponds that lead into vast underwater cave systems!