Einstein of the Sea.

The article discusses tool use in fish, adapted from the book "What a Fish Knows: The Inner Lives of Our Underwater Cousins, by Jonathan Balcombe, including in regard to cognition in fishes. An overview of tool use by the orange-dotted tuskfish (Choerodon anchorago) to break a clam and by the archerfish's (Toxotes') squirting water in its predation of spiders and insects is provided.