Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.
notable works. Pyotr Ilyich Tchaikovsky, Tchaikovsky also spelled Chaikovsky, Chaikovskii, or Tschaikowsky, name in full Anglicized as Peter Ilich Tchaikovsky (born April 25 [May 7, New Style], 1840, Votkinsk, Russiaâdied October 25 [November 6], 1893, St. Petersburg), the most popular Russian composer of all time.
Ivan died from a stroke while playing chess with Bogdan Belsky on 28 March [O.S. 18 March] 1584. Upon Ivan's death, the Russian throne was left to his unfit and childless middle son Feodor. Feodor died childless in 1598, ushering in the Time of Troubles.