Super old sharks of the Arctic Ocean

Brought to you by Robert Kokenyesi, Ceramic Artist, Beachfront Pottery, Godfrey, IL USA. The research report Many large animals have long lifespans, like the Galapagos tortoises, leatherback sea turtles, elephants, whales, so what about sharks?  Most of the time growth rates (growth of the entire shark in length) are used to estimate the age of sharks caught. Read More…