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4 Episodes 2016 - 2016
Episode 1
Tue, Nov 1, 2016 27 mins
The Season 8 premiere examines sponges, which may have been Earth's first animal. There's not total agreement, however. Some scientists posit that ctenophores, aka comb jellies, were the first.
Episode 2
Tue, Nov 8, 2016 27 mins
A look at manatees that migrate to Crystal River, Florida during the winter months. The annual event is a treasure trove for the scientists who study them.
Episode 3
Tue, Nov 15, 2016 27 mins
A visit to the islands of Maug, which are located in the Pacific Ocean. The islands were formed by an ancient volcano and feature shallow hydrothermal vents close to coral reefs inside the submerged caldera.
Episode 4
Tue, Nov 22, 2016 27 mins
The Blue Heron Bridge in Riviera Beach, Fla., which is home to one of the best shore dives in the U.S., is visited in the Season 8 finale. It's home to a rich variety of marine life, including tiny nudibranchs, manta rays and two species of octopus.