Skip to main content

Up Next

Back to Show
Changing Seas

Humpback Health

How does the body size and overall health of humpback whales change across their migratory cycle? A team of researchers studying the animals, which spend part of the year feeding in Alaska and a few months fasting while in their Hawaiian breeding grounds, is making remarkable discoveries.

Support Provided By
Season
Changing Seas Season 16
26:42
Experts study southern sea otters to ensure their longtime survival on California’s coast.
Islanders restore Maui's watersheds through traditional Hawaiian wisdom.
Florida scientists make remarkable discoveries about whitespotted eagle rays.
Marine archaeologists uncover a Roman shipwreck on Croatia's Adriatic Coast.
Life in the Dark: The Polar Night
Unlock with PBS Passport
26:42
Researchers brave the Arctic’s cold and dark to reveal the mysteries of the Polar Night.
Bermuda: Life at Ocean's Edge
Unlock with PBS Passport
26:42
Amid shipwrecks and shifting sands, Bermuda’s corals offer clues to climate resilience.
Sharks in Belize: Jaguars of the Sea
Unlock with PBS Passport
26:42
Knowledgeable fishers collaborate with scientists to keep sharks abundant.
Mollusks: More than a Shell
26:42
Researchers and citizen scientists document the fascinating lives of seashells.
Changing Seas Season 14
Unlock with PBS Passport
26:42
Florida’s gentle giants are dying in record numbers.
Kelp: Hidden Treasure of the Salish Sea
Unlock with PBS Passport
26:42
Experts are working to conserve and restore the Puget Sound’s declining kelp forests.
Humpback Health
Unlock with PBS Passport
26:42
Scientists study the body size and health of humpback whales across their migratory cycle.
Vanishing Whales
26:42
Experts study declines in the number of humpbacks migrating between Alaska and Hawaiʻi.
Active loading indicator