Hammer Head Shark
COMMON NAME: Hammerhead Sharks
SCIENTIFIC NAME: Sphyrnidae
TYPE: Fish
DIET: Carnivore
GROUP NAME: School, shoal
AVERAGE LIFE SPAN IN THE WILD: 20 to 30 years
SIZE: 13 to 20 feet
WEIGHT: 500 to 1,000 pounds
Population
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 up to 1,000 pounds, although smaller sizes are more common.
Found in temperate and tropical waters worldwide, far offshore and near shorelines, hammerheads are often seen in mass summer migrations seeking cooler water. They are gray-brown to olive-green on top with off-white undersides, and they have heavily serrated, triangular teeth. Their extra-tall, pointed dorsal fins are easily identifiable.
Interactions with Humans
Most hammerhead species are fairly small and are considered harmless to humans. However, the great hammerhead's enormous size and fierceness make it potentially dangerous, though few attacks have been recorded.
Unique Traits
Their wide-set eyes give them a better visual range than most other sharks. And by spreading their highly specialized sensory organs over their wide, mallet-shaped head, they can more thoroughly scan the ocean for food.
One group of sensory organs is the ampullae of Lorenzini, which allows sharks to detect, among other things, the electrical fields created by prey animals. The hammerhead's increased ampullae sensitivity allows it to find its favorite meal, stingrays, which usually bury themselves under the sand.
Informaition Sourced by - National Geographic
