A squid turns upside down to mateSourced
Near the seabed, two squid meet.
The male grips on belly-up.
A remotely operated vehicle filmed mating behaviour in the deep-sea squid Pholidoteuthis adami. The male faced upwards while holding the swimming female close to the seabed. Researchers have proposed several reasons for the posture, including positioning and avoiding predation.
Even the sense of up and down
changes in a deep-sea encounter.
Summary / translation: Unbubly · CC BY-SA 4.0
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Pholidoteuthis adami · Wikimedia contributors
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Reviewed: 2026-10-01