Interesting factoid, Sharks have a fairly unique sense that most animals don't, they can sense fairly faint electrical fields that living creatures produce (electroreception) that they use for "targeting" their amazing jaws, finding prey hidden in seafloor sand, and possibly even navigating in Earth's magnetic field.
This is especially important when they are about to attack some prey. Due to the structure of their jaws that actually unhinge and push forward during an attack, they lose sight of their prey and use this sense to hone in their bite.
I remember watching video from an experiment where Sharks were fed live fish and raw meat, and the sharks kept missing the meat but almost never missed a live fish.
This is especially important when they are about to attack some prey. Due to the structure of their jaws that actually unhinge and push forward during an attack, they lose sight of their prey and use this sense to hone in their bite.
I remember watching video from an experiment where Sharks were fed live fish and raw meat, and the sharks kept missing the meat but almost never missed a live fish.
Here's a video of one confused by an artificial electrical field. http://www.youtube.com/watch?v=4aYPHeK1Tyo