The changing size of mother whales is being tracked after the southern white whale came back from the brink of extinction

After being hunted to near extinction and threatened with climate change, drones are giving southern right whales in the Great Australian Bight a much-needed health check.

Sponsored by WWF-Australia, researchers at Murdoch University are measuring the size of individual whales and monitoring how that changes during the calving season, with plans to track their weight each year.

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Source: Guardian Environment