![TIL that Charles Darwin spent 8 years studying barnacles, even nicknaming one "Mr. Anthrobalanus." This barnacle led to Darwin determine that barnacle penises are 8-9 times as long as the barnacle. : r/todayilearned TIL that Charles Darwin spent 8 years studying barnacles, even nicknaming one "Mr. Anthrobalanus." This barnacle led to Darwin determine that barnacle penises are 8-9 times as long as the barnacle. : r/todayilearned](https://external-preview.redd.it/w8VDXLa0FbncTVIXFEJoK16-G_FCg7nlyrXT9fo1XfE.jpg?auto=webp&s=19d5e20cf76212421f976b4cf15a2a5445d0edc4)
TIL that Charles Darwin spent 8 years studying barnacles, even nicknaming one "Mr. Anthrobalanus." This barnacle led to Darwin determine that barnacle penises are 8-9 times as long as the barnacle. : r/todayilearned
![Precisely proportioned: intertidal barnacles alter penis form to suit coastal wave action | Proceedings of the Royal Society B: Biological Sciences Precisely proportioned: intertidal barnacles alter penis form to suit coastal wave action | Proceedings of the Royal Society B: Biological Sciences](https://royalsocietypublishing.org/cms/asset/6142997a-4450-4d8f-a94b-0b5e8e1e0297/1081fig3.jpg)
Precisely proportioned: intertidal barnacles alter penis form to suit coastal wave action | Proceedings of the Royal Society B: Biological Sciences
![Adaptive evolution of sexual systems in pedunculate barnacles | Proceedings of the Royal Society B: Biological Sciences Adaptive evolution of sexual systems in pedunculate barnacles | Proceedings of the Royal Society B: Biological Sciences](https://royalsocietypublishing.org/cms/asset/b4c5f52e-2938-4419-b771-342f09b9861a/rspb20111554f01.jpg)