Dr Bruce Mate's team from OSU MMI tagged six whales in their Antarctic feeding grounds to find out where they go to breed. This data is now available on love earth. See how the whales' stories unfolded, week by week.
The team tagged another mother. Her calf was in Antarctica for the very first time.
At 30-40 tonnes, it's no wonder Steve was eating all the krill he could find.
This healthy adult was feeding with another whale when he was tagged.
With her year-old calf in tow, Emily was the first of our whales to be tagged.
Cath must like company - she was found feeding with three other humpbacks.
This whale was seen feeding using the amazing technique of 'bubble-netting'.
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The team travelled to the bottom of the world to find our humpback whales, which were feasting on the abundant krill. Find out exactly where they were tagged, what 'bubble-netting' means and why we'll never know if Dutch is really male!
What equipment do you need to tag humpbacks off Antarctica, how do you get there and what do you do once you're there? Ask Joel G Ortega-Ortiz, the leader of the expedition to tag our whales.
Ever been caught between two amorous male whales and a female? Bruce Mate has - just one yarn from a lifetime of pioneering research into the migration routes of whales. Follow his own amazing journey from high school to the high seas.
Oregon State University's Marine Mammal Institute provides the scientific information for our humpback whale tracking section. Find out more about the people who work there and what they do. There's also a video by Dr Bruce Mate, director of the MMI and a world authority on endangered whales.
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Re-live favourite scenes from earth, and find out about the making of.
I'm Joel Ortega-Ortiz, a research associate at the Oregon State University Marine Mammal Institute. We fitted satellite tags...
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