A pair of divers swimming off the southwestern tip of England hit the jackpot last week after crossing paths with a hulking barrel jellyfish — a rarely seen species that can grow about as large as a full-grown human. Luckily, they filmed the whole thing.
The divers were diving off the coast of Cornwall, U.K., when they saw the giant jellyfish emerge from the murky water. Also called the dustbin-lid jellyfish, the species is characterized by eight puffy arms capped by stinging tentacles and a large, globular head that lends the creature its unglamorous nickname.
While the barrel jellyfish is the largest species of jelly found in U.K. waters, it’s a mere shrimp when compared to the lion’s mane jellyfish, the largest known species in the world. This coldwater jelly is known for its galaxy of 1,200 long, trailing tentacles, which can bring an individual creature’s total body length to up to 120 feet (36.5 meters) — which is longer than the average blue whale.
barrel jellyfish：名詞，桶水母、桶狀水母。例句：Barrel jellyfish sometimes wash up on the shore.（桶水母有時會被沖到岸邊。）
lion’s mane jellyfish：名詞，獅鬃水母。例句：A single lion’s mane jellyfish may be able to sting 50 to 100 people in just a few minutes.（一隻獅鬃水母可以在幾分鐘內螫傷50至100人。）
tentacle：名詞，觸器、觸手、觸鬚。例句：Each jellyfish tentacle is covered with thousands of cells called cnidoblasts.（每隻水母的觸器上都覆蓋著數千個被稱為刺絲胞的細胞。）