Scientists from the University of Vienna have discovered ancient nursery white sharks – the place where these predators have multiplied and grown. As reported by N+1, Pliocene in age, such nursery was located off the coast of Central Chile.
White sharks spend their early years in the “shark nursery” – food-rich and protected from the dangers of the ocean, which gave them the perfect start life. Scientists are actively looking for such nurseries, because they are important for the conservation of the species. In our days such regions exist in the Mediterranean sea, off the coast of South Africa, South-Eastern Australia, California and Western North America.
Now, however, the researchers were able to figure out where he was born and spent the first years of their lives to white sharks during the Pliocene, that is, a 5.5 – 2.5 million years ago. The researchers studied the dimensions of 234 teeth fossil of this species discovered at three points along the coast of Peru and Chile. Based on these data, they calculated the average length of the individuals who owned these teeth.
Most young white sharks were found near the city of Coquimbo on the coast of Central Chile. According to the authors, it is here in the Pliocene and housed the manger of this species. The area provided ideal conditions for shark rearing: extensive shallows were carried out their favorite types of fish and it was not large predators.
Nurseries in this region have existed for several million years. Today, white sharks do not reproduce here. Scientists say that the study of conditions which allow the shark to exist the manger, will help preserve this vulnerable species.
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