Octopus Eye - However underwater light has a polarized component which some octopuses can detect. When this light travels through the body of a transparent animal its polarization will be changed and the octopus can see that and capture the prey.
#Repost @sharks_are_awesome1 with @repostapp ・・・ ℹ Meet the thresher shark ! They are easily recognizable by their large upper caudal fin. This tail fin may often be 50 percent of the total length of the shark. It has a short snout and large eyes placed forward on the head. Photo by MALAPASCUA DIVE