News from the kingdom of the seaRead out
The Hollywood classic The White Hai has made them probably the most feared animals in the world. Her back fin will frighten swimmers, divers and surfers - fewer people die each year from shark infestations than from falling coconuts.
Hardly any marine inhabitant is so well known in the public, but as unknown in research as the shark. Neither mating behavior nor birth were ever observed in freedom. The walking routes of the animals are just as enigmatic as the communication or the everyday behavior. There are sharks for over 400 million years and belong to the predatory fish in the oceans.
But in recent years, the scientists are moving the gray hunters "on the fin". With self-built submarines, they sneak past White Sharks, satellite channels reveal information about diving depths and migratory behavior, and a space telescope identifies whale sharks.
Are sharks actually coastal inhabitants? Why do not salmon sharks freeze in four degrees of cold water? How deep can you dive? And why are these predators so important to the entire ocean ecosystem? At least on these questions, scientists have already found answers with high-tech instruments and new research methods ...
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Stand: 10.02.2006 Display