Sharks are some of the most fascinating and oldest inhabitants of our oceans. These impressive predatory fish have existed for over 400 million years and have adapted perfectly to their environment over the course of evolution. There are over
500 known species of shark, which vary greatly in size and appearance - from the dwarf lantern shark, which is only 20 cm long, to the majestic whale shark, which can be up to 18 metres long.
Sharks have a skeleton made of cartilage instead of bone, which gives them enormous flexibility. Their skin is covered with tiny, tooth-like scales that reduce water resistance. The
sharks highly developed sensory organs are particularly remarkable:
The lateral line organ perceives the finest water movements, the Lorenzinian ampullae detect electrical fields and a pronounced sense of smell helps to locate prey. In addition, their sharp eyes with night vision enable them to orientate themselves well.
Most
shark species are predatory fish and are at the top of the marine food chain. Their prey ranges from plankton to fish and seals.
Sharks play an important role in the ecosystem by preying on sick and weak animals and thus contributing to the health of populations.
Despite their reputation as dangerous hunters, many
shark species are threatened by human activities. Overfishing, bycatch and habitat loss have drastically reduced the populations of many species. Conservation organisations around the world are working to protect these important marine predators.
Sharks have always fascinated us humans with their strength, elegance and perfectly adapted physique. They are indispensable components of healthy oceans and deserve our respect and protection.
In this category you will find fossil teeth of various shark species: teeth of the
mako shark, tiger shark, Hempiristis serra, as well as many other species.