Many sea creatures have special hunting methods, which include burying themselves in the sand on the ocean floor and then waiting for their hapless prey to walk by and then they snag them for dinner. Manta Rays do this, but so do so many very small sea creatures also.
Often scientists, researchers and engineers look to natures millions if not a billion years of evolution for ideas in design to propel their latest and greatest concepts and designs. The ability to hide and bury one