article_snippet.sent: When a female swims by, the male Argonaut sends his penis off to swim to the female and mate with her.
article_snippet.sent: In fact, his penis is a ball of sperm in a tentacle called a hectocotylus and females can be fertilised by more than one, by storing females in the mantle cavity.
article_snippet.sent: The male dies soon after his unique ordeal, whereas the female can mate several times and even store multiple hectocotyli in a special cavity until the female’re needed.
article_snippet.sent: In the past, scientists that caught female specimens confused the attached penises for parasitic worms.
article_snippet.sent: The male mollusc won almost a third of votes in a survey set up by the Society of Biology to identify the strangest animal sex.
highlights_snippet.sent: Biologists at the Hebrew University of 