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  • Seymour Sullivan posted an update in the group Group logo of Fact a Day 2022Fact a Day 2022 3 months, 3 weeks ago

    Our tasty friend, the scallop! We love their meat and their shells! Scallops are a cosmopolitan family of bivalves which are found in all of the world’s oceans, although never in fresh water. They are one of very few groups of bivalves to be primarily “free-living”, with many species capable of rapidly swimming short distances and even of migrating some distance across the ocean floor. A small minority of scallop species live cemented to rocky substrates as adults, while others attach themselves to stationary or rooted objects such as sea grass at some point in their lives. The majority of species live recumbent on sandy substrates, and when they sense the presence of a predator such as a starfish, they may attempt to escape by swimming swiftly but erratically through the water using jet propulsion created by repeatedly clapping their shells together. Scallops have a well-developed nervous system, and unlike most other bivalves, all scallops have a ring of numerous simple eyes situated around the edge of their mantles.

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