2. Lion’s Mane Jellyfish
Known as the giant jellyfish, this is the largest specimen of jellyfish. No wonder it’s this high in our list of longest animals in the world. Usually found in cold waters, this giant jellyfish has a bell with a diameter measuring several meters, while the tentacles are even longer. In fact, the largest specimen found washed up on the shore of Massachusetts Bay back in 1870 and its bell measured 7 feet 6 inches (2.3 meters) and the tentacles 121.4 feet (37 meters).
Of course, the average lion’s mane jellyfish varies in size, going from tiny specimen to those the size we mentioned above. It’s also related to the age of the individual, but also with the way they evolved and if they had the best conditions to grow to such sizes.
1. Bootlace worm
The longest animal the world is considered to be the Bootlace worm. The Guinness World Record book notes that the longest specimen ever encountered was found in 1864 on the shores of St Andrews in Fife, UK. The worm measured 180 feet (55 m) and nearly 4 inches in width (10 cm), making it the largest animal ever found.
This proves that in the animal kingdom you don’t have to weight the most or have an imposing figure in order to top the charts. Commonly found along the coasts of Britain, the bootlace worm usually has a width of about 5 to 10 millimeters, although it can grow quite long.
That being said, these are the 6 longest animals in the world.
