Click through to take a look at 15 of the most venomous creatures on Earth. It is believed that the black jellyfish excretes waste material from the digestion of food through their mouth itself. Victims should always seek immediate medical treatment in the event of a sting to hopefully avoid the many severe health risks that these poisonous jellyfish pose to humans. The Black Jellyfish (Chrysaora Achlyos) or Black Sea Nettle are so called because of their dark blackish color. The variety of box jellyfish known as the sea wasp or marine stinger is widely regarded as one of the most deadly creatures on earth. The body of jellyfish, consisting 98% of water, is similar in shape to an umbrella (or bell). Top 10 Most Poisonous Animals. Whether you believe it or not, this species of jellyfish was identified as a separate species only as recently as 1997. Some of these creatures are beautiful as well as dangerous. Box jellyfish also use their venom to defend against predators, which include crabs, batfish, rabbitfish, and butterfish. They are also … Share. Poisonous Jellyfish Species. Many animals naturally produce venoms, toxins, and poisons to defend themselves and incapacitate their prey, while others accumulate toxins from the food they eat. Due to the purple translucent bell body, it is known as purple jellyfish. It is commonly found in the Atlantic, Pacifica and Indian Oceans. Jellyfish sting so that they can catch and eat other sea creatures. If you have ever been swimming and noticed a jellyfish floating toward you, odds are you scrambled to get away as quickly as you possibly could. The black jellyfish does not have any respiratory or excretory organs. From each of the four lower corners of this hangs a short pedalium or stalk which bears one or more long, slender, hollow tentacles.The rim of the bell is folded inwards to form a shelf known as a velarium which restricts the bell's aperture and creates a powerful jet when the bell pulsates. But that sting can be turned on people. Though it is not a killer jellyfish, it stung to such intensity which leaves in you in pain for several days.

It is tough to spot jellyfish. The scientists are unable to predict if and when it might populate the Bulgarian Black Sea coast. From jellyfish to snakes, poisonous creatures come in all different shapes, sizes, and colours. It seems to go without saying that the meanest, most poisonous, and deadliest of all jellyfish inhabits Australia.

Beware those tentacles! Jellyfish are some of the ocean’s most ethereal creatures, making their way across vast expanses without so much as a brain or nervous system to guide their path.