Humpbacks Might Be the Superheroes of the Sea

From SciShow.

We don’t expect animals to act in a way that doesn’t directly benefit their species. But humpback whales are willing to take on one of their few natural predators to become the heroes of the ocean!

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Sources:
https://onlinelibrary.wiley.com/doi/full/10.1111/mms.12343
https://www.nationalgeographic.com/news/2016/08/humpback-whales-save-animals-killer-whales-explained/
https://www.britannica.com/animal/humpback-whale
https://phys.org/news/2018-11-humpback-whale-survivors-orca-southeastern.html
https://www.hakaimagazine.com/news/killer-whales-are-bullies-and-humpbacks-are-bouncers/
https://www.sciencemag.org/news/2016/07/why-did-humpback-whale-just-save-seals-life
https://www.sciencealert.com/humpback-whales-around-the-world-keep-saving-other-animals-from-orcas
https://www.int-res.com/articles/esr2008/4/n004p247.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4006263/

Images:
https://commons.wikimedia.org/wiki/File:My_Whale_Captures_(7846805436).jpg
https://commons.wikimedia.org/wiki/File:Humpback_whale_size_(color).svg
https://www.eurekalert.org/multimedia/pub/185263.php?from=411484
https://www.eurekalert.org/multimedia/pub/185262.php?from=411484
https://www.flickr.com/photos/50979393@N00/12389517865
https://www.flickr.com/photos/20417698@N00/640255747
https://www.istockphoto.com/vector/whale-humpback-various-poses-cartoon-cute-vector-gm1127209166-297014138
https://www.istockphoto.com/vector/192a-gm1166809592-321551024
https://www.istockphoto.com/photo/baby-and-mama-humpback-whale-touching-and-loving-vavau-tonga-gm1201711680-344737072
https://www.istockphoto.com/vector/whales-species-size-comparison-set-cartoon-vector-illustration-gm1127209180-297014139
https://www.istockphoto.com/photo/aerial-view-of-huge-humpback-whale-iceland-gm1181274210-331255141