This is an animation of a shark rotating around a rock in the blue ocean. This is implemented by [attributeName="d"] function of SMIL. The tutorial which I referred to is here:codepen.io/danjiro/blog/how-to-make-svg-loop-animation
Shark-SMIL-animation free icon was designed by yamachem for icons Png and presented to its users.
yamachem
2/12/2018