The activity mode of benthic animals

1, sea cucumber lives in the depths of the sea floor and can only move at a speed of four meters per hour by muscle movement.

2. Shellfish don't move by themselves, and they are absorbed under the boat with suction cups, so they can travel long distances freely.

3. The sucker fish is absorbed under the shark's stomach with a sucker and taken away far away.

4. Squid can suddenly spray water forward, and use the reverse thrust of water to quickly retreat.

Octopus also uses the reverse thrust of water to retreat quickly.