World’s most elusive giant squid could be monogamous, female corpse hints

A female giant squid caught in a net off Kyoto had dozens of sperm packets from a single male embedded in her muscles. (Image credit: Miyazu Energy Aquarium)

A female of the world’s largest squid — sometimes called the “kraken” after the mythological sea monster — that was caught off the coast of Japan apparently had just one amorous encounter in her lifetime. 

The female had sperm packets from just one male giant squid embedded in her body, which surprised researchers. Because giant squid are solitary creatures that probably run across potential mates only occasionally, scientists expected that females would opportunistically collect and store sperm from multiple males over time.

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