Tonight What to watch What's new

Top charts

Top TV shows Top movies Best episodes Top seasons Most loved

Watch guides

Best shows of 2026 Best movies of 2026 Underrated shows Underrated movies

Compare

Compare shows Compare movies

Upcoming & new

Upcoming TV Upcoming movies New on streaming Renewals & dates

Find your next watch

What to watch Get a recommendation Watch orders

Networks

TV genres

Drama Comedy Crime Sci-Fi Fantasy Horror Mystery Thriller Action Romance Supernatural Anime

Movie genres

Action Adventure Animation Comedy Crime Drama Fantasy Horror Mystery Romance Sci-Fi Thriller

Browse everything

/

Tonight What to watch What's new

Top charts

Top TV shows Top movies Best episodes Top seasons Most loved

Watch guides

Best shows of 2026 Best movies of 2026 Underrated shows Underrated movies

Compare

Compare shows Compare movies

Upcoming & new

Upcoming TV Upcoming movies New on streaming Renewals & dates

Find your next watch

What to watch Get a recommendation Watch orders

Browse everything

Nature· Season 21 · Episode 6

Under Antarctic Ice

S21E06·January 12, 2003·1h·PBS

Streaming on (US) See all

PreviousTrail of the CougarS21E05 NextThe Reptiles: Alligators and CrocodilesS21E07

Keep going

Season 21 ranked & reviewed Best of Nature Ratings graph

Tonight, decided

Episode rankings, release dates, and where to stream — checked around the clock, localized to your country.

Explore

What to watch Get a recommendation Tonight's schedule What's new Watch orders Browse everything About TV Nightly

Hubs

Anime Horror Classic film Sci-fi & fantasy Community loved

Stay updated

Today's TV, renewals and premieres in your inbox every evening.

One evening email. No spam — unsubscribe anytime.

Disclaimer: TV Nightly is independent and is not affiliated with any TV shows, movies, networks, or data sources. While we aim to provide reliable information, the data presented on this site is not guaranteed to be accurate, complete, or current.

TV and film information from TVmaze and TMDB APIs.

Feedback·How we pick·Editorial policy·Terms of Service·Privacy Policy© 2026 TV Nightly. All rights reserved.