Jellyfish are incredibly unique creatures that have been the subject of scientific curiosity for hundreds of years. Based on recent discoveries in the fossil record, it has been established that jellyfish existed on Earth as early as 500 million years ago. Today there are over 2,000 recognized jellyfish species that inhabit all the oceans of the world; however, scientists estimate that thousands of species are yet to be discovered.
Jellyfish are not only an incredibly diverse group of animals, but they can also have an incredibly long life. IN Turritopsis dohrnii jellyfish, also known as the immortal jellyfish, is capable of returning to a younger stage of life repeatedly after reaching adulthood when injured or otherwise threatened. Scientists claim that under ideal conditions, this 4.5mm jellyfish could live indefinitely.
Jellyfish are known for their bright coloration, long tentacles, and sometimes painful bites. They come in a wide variety of colors, including blue, pink, purple, yellow, and orange. Many are translucent, and some, such as crystal jellyfish, have a unique trait called bioluminescence that allows them to glow in the dark. Although jellyfish are beautiful in nature, many of them can be poisonous and deadly. Australian box jelly, also known as the “sea wasp”, is widely regarded as one of the deadliest creatures on the planet and, along with other box jellies, has claimed at least 5,568 deaths since 1954.
From red to blue, harmless to deadly, microscopic to huge, jellyfish come in all shapes and sizes and are some of the most adorable creatures on the planet. This article introduces some of these amazing animals. Here are the nine largest jellyfish based on the maximum diameter of the bell (the “head” of the jellyfish).
# 9: Atlantic stinging nettle – 10 inches in diameter.
The Atlantic sea nettle jellyfish can have a bell diameter of up to 10 inches and tentacles reaching 1 foot 7 inches in length. This jellyfish lives in the Atlantic and Indian Oceans, where it is hunted by sea turtles, ocean sunfish and larger jellyfish. Atlantic stinging nettle also has an interesting symbiotic relationship with blue crabs, where jellyfish provide food and shelter for the blue crab, and the blue crab removes parasites and jellyfish debris. An Atlantic sea nettle bite may cause mild discomfort, but not fatal to humans.
# 8: Australian box jellyfish – 19 “diameter.
The largest recorded size of the Australian jellyfish bell is 19 inches in diameter, but on average their bells are 6-9 inches in size with tentacles up to 10 feet in length. The Australian box jellyfish has been nicknamed the “sea wasp” because of its incredibly poisonous spiny tentacles. It is considered one of the deadliest animals on the planet and can cause paralysis, cardiac arrest and death in less than three minutes with a single bite. The first person to survive a box jellyfish bite was a 10-year-old Australian girl in 2010.
Tiburonia gameNrojoColloquially known as the “big red” jellyfish, it is a deep-sea invertebrate with a bell that can reach 2 feet 6 inches in diameter. This jellyfish lives 2,000 to 4,800 feet below sea level and is found off the coast of Japan, Hawaii, Baja California, and western North America. The large red jellyfish does not have stinging tentacles, but it has four to seven thick arms that are used to grab prey. Earliest detection Great red shark was in 1993, and like many deep-sea creatures, much is still unknown. What is known about large red jellyfish is mainly based on data and photographs collected with a remote controlled submarine in the depths of the ocean.
The black sea nettle jellyfish can be bell-shaped up to 3 feet in diameter and tentacles up to 25 feet long. This jellyfish is rare in nature and was not officially classified as a species until 1997. Black Sea nettle, when found, is often found with Pacific dairy fish. The Pacific milkfish feeds on plankton collected by jellyfish and hides in its large bell to avoid predators. The bites of this jellyfish can be painful, but not fatal to humans.
The largest confirmed pink malevolent jellyfish was seen in the Gulf of Mexico and had a bell diameter of about three feet. Some unconfirmed anecdotal reports report diameters up to 5 feet. These jellyfish can have stinging tentacles up to 70 feet long and have been reported to entangle and eat 34 smaller jellyfish at a time. Due to the rarity of the pink greedy jellyfish, it was not officially classified as a new species until 2014. This jellyfish can cause a painful bite, but it is not fatal.
Giant Stygiomedusa it is a deep sea jellyfish with a bell that can reach 4 feet 7 inches in diameter. This jellyfish does not have tentacles, but four arms that can reach 32 feet in length. It is assumed that these hands are used to grab and catch prey, rather than sting it. Despite having been seen in the wild only 118 times in the past 110 years, Giant Stygiomedusa It is considered widespread in the deep ocean and is one of the largest invertebrate predators in this ecosystem.
Barrel jellyfish can reach 4 feet and 11 inches in diameter and are the largest jellyfish in the United Kingdom. The average jelly in barrels is 16 inches in diameter and about 3 feet in length. They have a large geographical distribution, but are most common in the Irish Sea and off the southern and western coasts of Great Britain. Barrel jellyfish bites are generally not harmful to humans.
Nomura’s jellyfish are found in the Yellow Sea and East China Sea and have a maximum bell size of 6 feet 7 inches. They are the same size as the lion’s mane jellyfish and can weigh up to 440 pounds. In severe cases, the bites of this jellyfish can be fatal, and if not cooked properly, eating Nomura’s jellyfish can also be fatal. In Japan, these jellyfish are rarely used in jellyfish vanilla ice cream.
The Lion’s Mane Medusa is the largest jellyfish in the world. The largest ever recorded was spotted off the coast of Massachusetts in 1865. This jellyfish was approximately 7 feet in diameter and had 120 feet of tentacles. The size of the lion’s mane jelly varies greatly depending on geography, with northern populations reaching 7 feet in height, while populations in lower latitudes averaging 20 inches in diameter. These jellyfish are commonly found in the Arctic Ocean, North Atlantic Ocean, North Pacific Ocean, English Channel, and the Irish Sea. Despite their intimidating size, lion-maned jellyfish stings are rarely fatal.