Changing Seas

Season 14 Episode 2: 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.

Genre:

Documentary

Seasons:

18

Episodes:

56

Cast:

Craig Sechler

Quality:

HD

Duration:

27 min

First Air:

2009

Rating:

-