Jellyfish species can 'knock down' American carriers
Jellyfish and sea creatures have appeared on Earth since about half a billion years ago, possibly more dangerous than our long-held concept. They can even attack nuclear plants.Photos of 'strange objects' on the ocean floor
Jellyfish at the coast of the White Sea, Russia, recorded by the creator Alexander Semenov looks like an alien or explosive block.7 popular but extremely dangerous seafood dishes
Despite the dangers of health risks, the following seafoods are still widely used in food processing and are popular.