Surname: Hammerhead shark
Other names: /
Latin name: Sphyrnidae
class: Cartilaginous fish
size: about 1 - 6m
mass: up to 500kg possible
Older: 20 - 25 years
Appearance: species-dependent, characteristic is the hammer-shaped head
Sexual dimorphism: Yes
Nutrition type: predominantly fish eater (piscivor)
food: Fish, octopus, rays, crabs
original origin: unknown
Sleep-wake rhythm: nocturnal
natural enemies: Orca
sexual maturity: ?
mating season: possible all year round
gestation: 330 - 360 days
litter size: 5 - 50 cubs
social behavior: Loners
Threatened with extinction: Endangered
Further profiles of animals can be found in the Encyclopaedia.
Interesting facts about the hammerhead shark
- The hammerhead sharks or Sphyrnidae describe a family of nine species within the basal sharks, named after their characteristic broadened head shape.
- Hammerhead sharks are found worldwide and are found mainly in coastal areas of the tropics and subtropics. Depending on the species, they live at depths of between twenty and 270 meters.
- Depending on the species, hammerhead sharks reach body lengths of about ninety centimeters to over six meters, with the corona hammerhead shark being the smallest of the family, the smooth and the great hammerheads the largest.
- All hammerheads share the eponymous forehead form. This hammered shape gives the hammerhead an excellent 360 degree view and visibility. With the wide muzzle, he receives the impulses of potential prey animals, even if they dig into the sand and hide.
- The hammerhead shark feeds mainly on fish of different sizes, but also capture squid and squid, smaller sharks - even those of the same family - as well as rays.
- The hammerhead shark goes hunting at night as a loner. During the day, the animals join together to form so-called schools, which can hold up to a hundred copies.
- Many hammerhead sharks fall for their part killer whales and larger sharks to the victim.
- All hammerheads are of streamlined and extremely slender and maneuverable physique and depending on the species brown, gray or golden yellow colored, the ventral side almost always appears white.
- The hammerhead shark produces up to thirty after some months of gestation, some species even up to fifty live and fully developed kittens.
- Hammerhead sharks are hunted intensely due to their fins, which in some countries are considered a special delicacy for soups, which is why their stocks have declined by an estimated eighty percent in recent decades.
- Although hammerheads like to stay in coastal waters, they pose only a small threat. Only very rare is reported by attacks on humans, only a few accidents with Great Hammerheads are fatal.
- The life expectancy of the hammer shark is between 20 and 25 years.