The tentacles of the giant Arctic jellyfish can reach 120 feet (36.6 meters) in length.
The Lion's Mane Jellyfish is an asexual, bell-shaped jellyfish species. They have red and yellow tentacles, with hues that are said to resemble the color of a lion's mane. Colors of the larger lion's mane jellyfish individuals can range from bright red to dark purple, while smaller ones are more typically tan to orange. It has over 800 tentacles, which are divided into 8 groups, and these can reach over 98 feet (30 meters in length).
The largest recorded lion's mane jellyfish had tentacles that reached 120 feet (36.6 meters). Its disc-shaped bell itself spans over 3 feet and, due to its tentacles, the lion's mane jellyfish is one of the longest animals in the world. The lion's mane jellyfishes' lifespans are around a year in length.