Giant extinct shark Megalodon Probably not letting you think about parenting or playdates. However, ever-increasing evidence suggests that these giant marine predators raised their babies by raising them in nurseries, and scientists added just five potential Megalodon nurseries to the list. Did.
The sites of these baby sharks are everywhere.Scientists reported they identified in 2010 Megalodon nursery school In Panama. Recently, another research team described the new Megalodon nursery in northeastern Spain. Fully grown shark and adolescent fossils were found together, most of which were from boys and newborns.
The same scientist also analyzed data from eight other sites (16 to 3 million years ago). Otodus Megalodon The fossils were abundant. They evaluated the body size of individual sharks to determine the ratio of juvenile to adult fish and named four more farms.
This result suggests that adult Megalodon generally raised their offspring in nurseries where baby sharks were protected until they were able to protect themselves from other marine predators. New research suggests that the reduction in available nurseries may have contributed to the extinction of giant sharks.
Relation: Photo: These animals were once giants
O. Megalodon Estimated to be up to 50 feet (15 meters) in length, it is the largest predatory shark ever inhabited. Most Megalodon fossils date back about 15 million years, and giant fish disappeared from fossil records about 2.6 million years ago.
Today, many modern sharks raise their children in nurseries.The waters near Buenos Aires Province in northern Patagonia Nursery school for some shark species,and Sand tiger shark nursery (((Carcharias taurus) Long Island’s Great South Bay is home to juvenile sharks that live there until the age of four to five. And according to the case of fossilized eggs, only 0.04 inches (1 mm) long, found alongside the shark’s “baby teeth,” the oldest known shark nursery is more than 200 million years old. is. Previously reported..
For a new study, researchers investigated 25 teeth belonging to O. Megalodon From the Reverté and Vidal quarries in Tarragona, Spain. They used crown height to estimate body size and identify which shark was the baby. Very young sharks (probably about one month old) were about 13 feet (4 m) long, and older sharks were up to 36 feet (11 m) long.
Then scientists used the algorithm, O. Megalodon From boys to adults in eight other locations across the “wide geographic area”, including the Atlantic, Caribbean, and Pacific basins. They have determined five potential nurseries that are “dense individuals with an estimated length within the typical range of newborns and young boys,” including the location of Panama described in 2010, scientists said. Wrote in research.
“Our results reveal for the first time that the nursery area was commonly used. O. Megalodon Over a large temporal and spatial scale. ”
Pre-analysis of annual rings O. Megalodon Vertebrae indicate that the shark reached adult size after about 25 years, suggesting that it was late-blooming for sexual maturity. “Therefore, the use of the nursery area O. Megalodon,“Research shows that it ensures species survival by reducing the mortality rate of young sharks and helping to maintain a viable adult population.
Researchers cannot say exactly what caused the extinction of Megalodon, but climate variability, which slowly eradicated important nurseries, was the final result of Megalodon, especially as Megalodon faced intensifying competition with other up-and-coming predators. It may have contributed to the decline. Great white shark (((Great white shark), The scientist reported.
The findings were published online in the journal on November 25th. Biology letter..
Originally published in Live Science.
Megalodon nursery reveals that the world’s largest shark had a soft side
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