![Jen Richards on Twitter: "One of my favourite things about killer whales is how diverse they are in behaviour, diet, and appearance, so I drew four of them together as a comparison. Jen Richards on Twitter: "One of my favourite things about killer whales is how diverse they are in behaviour, diet, and appearance, so I drew four of them together as a comparison.](https://pbs.twimg.com/media/Dxc5YZtXQAEUa_j.png)
Jen Richards on Twitter: "One of my favourite things about killer whales is how diverse they are in behaviour, diet, and appearance, so I drew four of them together as a comparison.
![Genome-culture coevolution promotes rapid divergence of killer whale ecotypes | Nature Communications Genome-culture coevolution promotes rapid divergence of killer whale ecotypes | Nature Communications](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fncomms11693/MediaObjects/41467_2016_Article_BFncomms11693_Fig1_HTML.jpg)
Genome-culture coevolution promotes rapid divergence of killer whale ecotypes | Nature Communications
![Type-C killer whale with a scar left by a healed cookiecutter bite in... | Download Scientific Diagram Type-C killer whale with a scar left by a healed cookiecutter bite in... | Download Scientific Diagram](https://www.researchgate.net/publication/278672675/figure/fig5/AS:391804299038733@1470424832901/Type-C-killer-whale-with-a-scar-left-by-a-healed-cookiecutter-bite-in-McMurdo-Sound.png)
Type-C killer whale with a scar left by a healed cookiecutter bite in... | Download Scientific Diagram
![Cold call: the acoustic repertoire of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica | Royal Society Open Science Cold call: the acoustic repertoire of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica | Royal Society Open Science](https://royalsocietypublishing.org/cms/asset/98da1d8c-009d-45e4-ada0-f0dca9bd130d/rsos191228f04.jpg)
Cold call: the acoustic repertoire of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica | Royal Society Open Science
![Morphological and ecological evidence for two sympatric forms of Type B killer whale around the Antarctic Peninsula | SpringerLink Morphological and ecological evidence for two sympatric forms of Type B killer whale around the Antarctic Peninsula | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs00300-016-1942-x/MediaObjects/300_2016_1942_Fig2_HTML.jpg)
Morphological and ecological evidence for two sympatric forms of Type B killer whale around the Antarctic Peninsula | SpringerLink
![Killer whale or orca (Orcinus orca) Adult female and calf type C (Ross Sea), Antarctic, artwork and photographs available for reproduction | Mark Carwardine Killer whale or orca (Orcinus orca) Adult female and calf type C (Ross Sea), Antarctic, artwork and photographs available for reproduction | Mark Carwardine](https://www.markcarwardine.com/whale_images/MC-FG-00617/image.jpg)