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On the television program QI, the show claimed that the longest animal in the world was the lion's mane jellyfish. This was later corrected – in 1864, a bootlace worm ( Lineus longissimus ) was found washed up on the coast of Fife , Great Britain, that was 55 m (180 feet) long.
Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish [2] [3] found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual.
The lion's mane jellyfish, Cyanea capillata, was long-cited as the largest jellyfish, and arguably the longest animal in the world, with fine, thread-like tentacles that may extend up to 36.5 m (119 ft 9 in) long (though most are nowhere near that large). [54] [55] They have a moderately painful, but rarely fatal, sting. [56]
The definition of "longest-living" used in this article considers only the observed or estimated length of an individual organism's natural lifespan – that is, the duration of time between its birth or conception, or the earliest emergence of its identity as an individual organism, and its death – and does not consider other conceivable ...
The oldest examples of swimming jellyfish, which lived in Earth’s oceans 505 million years ago, have been discovered high within the Canadian Rockies. Researchers found 182 fossils encased ...
With only around 110 sightings in 110 years, it is a jellyfish that is rarely seen, but believed to be widespread throughout the world, with the exception of the Arctic Ocean. [3] [4] [5] The Monterey Bay Aquarium Research Institute's remotely operated underwater vehicles have only sighted the jelly 27 times in 27 years.
Rank Animal Scientific name Maximum length () Image Habitat 1: Whale shark: Rhincodon typus: 12.65 [1]: 2: Basking shark: Cetorhinus maximus: 12.27 [2]: 3: Giant oarfish
"The four pillars of every longevity diet in the world are whole grains, greens, nuts, and beans," Buettner told Insider. "When you crunch the numbers , it's very clear that it's a 90% to 100% ...