Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download PA Shark Free.
PA Shark v1.1
PA Shark is a high quality, fully rigged Great White Shark Model.
Comes with high and low poly models for Desktop and Mobile platforms/LOD, as well as 4096×4096 textures for diffuse, normal, gloss and occlusion, for use with both legacy and standard shaders.
Includes 7 Animations:
Swim, Swim Up, Swim Down, Swim Right, Bite, Knock Back, Snap