In detail

The shark - Wanted poster


Characteristics

Surname: Shark
Latin name: Selachii
class: Cartilaginous fish
size: 4 - 6m
mass: up to 2000kg
Older: 15 - 30 years
Appearance: gray-white
Sexual dimorphism: Yes
Nutrition type: Carnivore
food: Fish, seals, sea lions
distribution: worldwide
original origin: unknown
Sleep-wake rhythm: diurnal
habitat: Ocean
natural enemies: /
sexual maturity: for the first time with 10 - 15 years
mating season: unknown
gestation: 10 - 20 months (depending on the species)
litter size: 1 cub
social behavior: Loner / swarm animal
Threatened with extinction: Yes
Further profiles of animals can be found in the Encyclopaedia.

Interesting about the shark

  • The most sensitive sensory organ of a shark is its nose. With it, single drops of blood can be smelled over several kilometers away.
  • Almost all shark species have no natural enemies when fully grown.
  • The shark has a so-called turret bit. If a tooth fails, a new tooth pushes itself within a few days to the vacancy. Shark teeth will be regenerated for a lifetime.
  • Sharks are considered to be one of the oldest surviving species, over 300 million years old.
  • On average, between 50 and 90 shark attacks are registered each year on humans.
  • Sharks breathe over the spray hole, an entrance between the eyes and the fin. The seawater is drawn in through the spray hole and forwarded to the gills.
  • Due to their high body fat content, seals are the preferred prey of sharks. Shark attacks on humans are thought to confuse swimmers and surfers with seals. Man is not on the diet of the shark.
  • Large prey animals are surprisingly attacked from behind with a single bite. After that, the shark waits until its victim bled to avoid being injured in the animal's agony.
  • Almost all older sharks have a visibly scarred skin, which can be traced back to fights (battles, battles for females) with other sharks.
  • Some shark species give birth to their offspring, others lay eggs.