What are the largest sizes of ocean giants?
Lion’s Mane Jellyfish
Tentacle Length: 36.6 m. (120 ft.)
Sperm Whale
Total Length: 24 m. (78.74 ft.)
Blue Whale
Total Length: 33 m. (108.27 ft.)
40 m. (131.23 ft.)
Whale Shark
Total Length: 18.8 m. (61.68 ft.)
20 m. (61.65 ft.)
Basking Shark
Total Length: 12.27 m. (40.25 ft.)
Giant Ocean Manta Ray
Disc Width: 7 m. (22.96 ft.)
Giant Octopus
Radial Spread: 9.8 m. (32.15 ft.)
Giant Squid
Total Length: 12 m. (39.37 ft.)
Oarfish
Total Length: 8 m. (26.25 ft.)
Great White Shark
Total Length: 7 m. (22.96 ft.)
Southern Elephant Seal
Total Length: 6.85 m. (22.47 ft.)
6.5 m. (21.32 ft.)
20 m. (61.65 ft.)
Greenland Shark
Total Length: 6.4 m. (21 ft.)
Bluntnose Sixgill Shark
Total Length: 5.5 m. (18.04 ft.)
Colossal Squid
Total Length: 4.2 m. (13.78 ft.)
Walrus
Total Length: 3.8 m. (12.47 ft.)
Japanese Spider Crab
Leg Span: 3.7 m. (12.14 ft.)
Ocean Sunfish
Total Length: 3.3 m.
(10.82 ft.)
Giant Tube Worm
Tube Length: 3 m.
(9.84 ft.)
Caribbean Giant
Barrel Sponge
Base Diameter: 2.5 m.
(8.20 ft.)
6.5 m. (21.32 ft.)
Nomura’s Jellyfish
Bell Diameter: 2 m. (6.56 ft.)
2 m. (6.56 ft.)
Giant Clam
Shell Length: 1.37 m. (4.5 ft.)
2 m. (6.56 ft.)
Australian Trumpet
Shell Length: 0.72 m. (2.36 ft.)
Giant Isopod
Total Length: 0.5 m. (1.64 ft.)
0.5 m. (1.64 ft.)
Sizing ocean giants: patterns of intraspecific size variation in marine megafauna by McClain et al
CC BY 4.0
Leatherback Turtle
Curved Carapace
Length: 2.13 m. (6.98 ft.)
DOI: 10.7717/peerj.715
Human
Total Length: 1.7m. (5.6 ft.)