What can we learn from whales' earplugs? | Natural History Museum (Audio Described) 

Follow a team of scientists as they investigate the head of a 100-year-old Minke whale, searching for its earplugs.
Discover more about what we can learn from a whale's earwax: www.nhm.ac.uk/...
This video was part of a series of exclusive content from the Natural History Museum's Whales: Beneath the Surface exhibition (July 2017 - February 2018).
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