Find out when Changing Seas is on TV today, tonight and this week at the American TV Listings Guide.
Changing Seas is scheduled to air at these times:
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.
More details for Changing Seas, Mon 25, 5:00 am
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.
More details for Changing Seas, Tue 26, 10:30 am
An exploration of the world's underwater life and ecosystems.
More details for Changing Seas, Mon 1, 5:00 am