The Twelve Biggest Jellyfish

Location: Worldwide
Species: Jelly Fish
Added: 2025-11-12
Recorded: rcd
Source: The BIGGEST

Discover the twelve biggest jellyfish in the oceans. Fascinating facts about these gelatinous marine invertebrates, including the giant Lion's Mane which can grow up to 120 feet (36,5m)long! The Tiburonia granrojo or the “big red” jellyfish lives in the depths of the ocean at around 2000 to 4000 feet (600 to 1200m) in the deep sea. Unlike most other jellyfish, it does not have tentacles but has instead four to seven feeding arms.

Despite their name, jellyfish they are not fish because they lack bones, a brain, and a heart; instead, they have a simple nervous system and are composed of over 95% water.