Season 8

Changing Seas

Beneath the Bridge

S8 Ep4 | 26m 43s

Florida’s Blue Heron Bridge is popular with divers because of its rich marine life.

Changing Seas

Maug’s Caldera: A Natural Laboratory

S8 Ep3 | 26m 43s

The Maug Islands are a natural laboratory for scientists studying ocean acidification.

Changing Seas

Manatees: Conserving a Marine Mammal

S8 Ep2 | 26m 43s

Each winter, scientists head to Crystal River, Florida, to study manatees gathered there.

Changing Seas

Sponges: Oldest Creatures in the Sea?

S8 Ep1 | 26m 43s

Are sponges the oldest creatures in the sea? DNA research has cast doubt on that theory.