7 Most Dangerous Jellyfish in the Underwater World

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Cannonball jellyfish (Stomolophus meleagris)

The spherical dome of this jellyfish is somewhat reminiscent of a cannonball, which is why the second name for this jellyfish appeared — cannon jellyfish. The venom of this jellyfish contains toxins that can cause heart problems in people. However, this did not stop some Asian countries from eating these jellyfish for food (after proper processing, of course).

INTERESTING Al Capone`s Prison

Al Capone`s Prison

The world's first correctional prison in Philadelphia, with the full name of Eastern State Penitentiary, first received a prisoner in 1829. For more than 100 years of work, a lot of villains and criminals were there, one of which was the well-known mafia boss Al Capone. How was this place different from other prisons and what does it look like now? More on this later ...