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Octopus Shows Off Its Funnel

This common octopus (Octopus vulgaris) shows off its siphon, which it uses to propel itself through the water.
(Beckmannjan via Wikimedia Commons)

This common octopus (Octopus vulgaris) doesn't have a jetpack to help him zoom through the water, but he's got something pretty close: a funnel that shoots water. (It's the little orange/yellow cup in the picture.) Octopuses pull water into their mantle cavities and then squeeze it out through the siphon (also called a funnel) at the front of their mantles to both swim and steer.

Tags: Anatomy