The third right arm of male octopuses has a specialised role in mating, and the creatures take extra care to avoid damaging it or losing it to a predator
Več na: https://www.newscientist.com/article/2521744-male-octopuses-have-a-favourite-arm-that-they-mostly-use-for-sex/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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