The icon looks like a side profile of a sharks dorsal fin sticking out of water. The fin has a slight diagonal line coming down from left side. The water is shown as a single line wave.
This Shark icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,500 icons, all in the same style and quality.