Sea Life
Deep Sea Fishes
Sea Turtles
Sea Lion
Sea Monkeys
Sea Otter
Sea Birds
Seahorses
Sea Snakes
Sea Dragons
Sea Eagles
Sea Anemone
Sea Bass
Sea Whales
Sea Spider
Sea Mammals
Sea Amphibians
Octopus
Dolphin
Shark
Sea Crabs
Sea Reptiles

In the Sea
Sea Shells
Sea Sponges
Sea Caves
Sea Coral
Sea Cucumbers

Sea Pictures and Wallpapers
Pictures of the Sea
Sea Wallpapers

Other Sea Information
Deep Sea Diving
Deep Sea Research
Marine Biology
Naval Sea Systems
Sea Exploration
Sea Grape
Sea Level Rise

Oceans and Seas
Indian Ocean
Southern Ocean
Atlantic Ocean
Arctic Ocean
Pacific Ocean
Baltic Sea
The Aral Sea
The Caspian Sea
Japan Sea
Red Sea
Okhotsk Sea
North Sea
Dead Sea
Yellow Sea
Caribbean Sea
Andaman Sea
Mediterranean Sea
Black Sea
Barents Sea
Kara Sea
Kara Sea


Hammerhead Shark

Hammerhead shark

About Hammerhead sharks :
The hammerhead sharks are found in the family Sphyrnidae, so named for the extraordinary and unique structure of their heads, which are compressed and tangentially extended into a "hammer" shape called a "cephalofoil". Most hammerhead species are placed in the species Sphyrna. Some authorities place the wing head shark in its own species, Eusphyra. Many, not essentially equally elite, functions have been projected for the cephalofoil, including sensory reception, maneuvering, and prey manipulation. Hammerheads are found universally in warmer waters all along coastlines and continental shelves. Unlike most sharks, hammerheads generally swim in schools. Some of these schools can be found near Malpelo Island.

Physical features :
This shark's heads have sideways projections, which give them a hammer-like shape. It was resolute in recent times that the hammer-like shape of the head evolved to improve the animal's vision. The positioning of the eyes gives the shark high-quality binocular vision and 360-degree visualization in the perpendicular plane, which means they can see above and below them at all times. The shape of the head was earlier thought to assist the shark to find food, aiding in close-quarters maneuverability and permitting spiky turning movement without losing firmness. However, it was found that the extraordinary structure of its vertebrae was influential in making the turns properly, more often than the shape of its head.

Diet :
Hammerhead sharks are known for eating a large variety of items including small marine fish, other sharks, squid, crustaceans octopus, and squid. Stingrays are preferred. They are also known to eat their own juvenile.

Reproduction :
The hammerhead sharks show a viviparous mode of reproduction with females giving birth to live juvenile. Like other sharks, fertilization is internal process with the male transferring their sperm to the female through intermittent organs called claspers. The increasing embryos are at first constant by a yolk sac. When the production of yolk is fatigued, the depleted yolk sac transforms into a composition analogous to a mammalian placenta during which the mother delivers sustenance until delivery.

The Great Hammerhead Shark :
The great hammerhead shark is scientifically known as Sphyrna mokarran. It is the biggest species of hammerhead shark, family known as Sphyrnidae, attaining length of 6.2 m. It is originated in tropical and warm temperate waters universally, living in coastal areas. The great hammerhead can be renowned from other hammerheads shark by the shape of its hammer known as the "cephalofoil", which is broad with an almost straight front border, and by its tall and sickle-shaped first dorsal fin. They are lonely, strong swimmer and an apex predator. They have a viviparous mode of reproduction, bearing litters of up to 50 pups every three years. Although potentially hazardous, the great hammerhead hardly ever attacks humans. It sometimes behaves curiously toward divers.

The Great hammerhead shark teeth :
Great Hammerhead Shark has a very tiny jaw but a huge head. The Great Hammerhead is one of the most exclusive creatures on the Earth and has a jaw that reach up to 29" wide, which is unbelievable. The head of this animal is 6 or more feet wide.

Fast Facts :

  • Type: Fish
  • Diet: Carnivore
  • Average life span: 20 to 35 years
  • Size: 13 to 25 ft
  • Weight: 500 to 1,500 lbs