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Changing Seas

S8 · E1 — Sponges: Oldest Creatures in the Sea?

S8:E1 · Sponges: Oldest Creatures in the Sea?

Episodes

4 episodes in this season

E1
Now Playing

Sponges: Oldest Creatures in the Sea?

E2

Manatees: Conserving a Marine Mammal

E3

Maug's Caldera: A Natural Laboratory

E4

Beneath the Bridge