Researchers detected short clicking noises from rig sharks during handling in the lab, though they're not sure why or how the sound is produced ...

One group of sensory organs is the ampullae of Lorenzini ... The great hammerhead is the largest of the nine identified species of this shark. It can grow up to 20 feet in length and weigh ...

"When the shark gets really close ... heartbeat or other muscle movements of a seal or swimmer. Despite all these sensory tools, many scientists say that great whites don't always know what ...