Great white sharks have some things in common with human serial killers, a new study says: They don’t attack at random, but stalk specific victims, lurking out of sight. The sharks hang back and observe from a not-too-close, not-too-far base, hunt strategically, and learn from previous attempts, according to a study being published online Monday in the Journal of Zoology. Researchers used a serial killer profiling method to figure out just how the fearsome ocean predator hunts, something that’s been hard to observe beneath the surface. Full Story : Google…..
Greg LeNoir took his 14-pound rat terrier Jake for a daily swim. When the dog was swimming off the Florida Keys, a 5-foot shark attacked the dog and pulled him under the water. Jake’s owner dove in and hit the shark in the back and the creature finally let go of the dog.
Although we don’t see ears of fishes, they do have ear parts inside their heads. According to the National Wildlife Federation, fishes can pick up sounds in the water through their bodies and in the ear.
They also can sense movement in the water with the lateral lines. Interestingly, sharks have the ability to sense electricity, and genes that contribute to this sense is responsible for the head and facial features in humans. Therefore sharks and humans come down to a common ancestor back in time. Our ears evolved from fish gills.