Weird Nature

20 Of The Largest Creatures In The Ocean 

Jacoby Bancroft
Updated May 22, 2020 38.1k views 20 items

There’s still so much mystery regarding the ocean. All of its vast, murky depths have yet to be explored, but we do at least know there are some terrifyingly gigantic creatures lurking about down there.

Some of the largest ocean animals are among the biggest creatures anywhere on Earth, reaching massive sizes you won’t believe. Check out the list below to learn about the biggest things in the ocean (that we know of).

Human-Sized Barrel Jellyfish
Human-Sized Barrel Jelly... is listed (or ranked) 1 on the list 20 Of The Largest Creatures In The Ocean
Photo:  Ales Kladnik/Flickr/CC BY 2.0

Typical barrel jellyfish are 3 feet in diameter and can weigh up to 77 pounds.

The barrel jelly spotted by biologist Lizzie Daly and underwater photographer Dan Abbott off the coast of Cornwall in the English Channel is 5 feet long, as big as Daly herself, making it the largest known barrel jellyfish.

Blue Whale is listed (or ranked) 3 on the list 20 Of The Largest Creatures In The Ocean
Photo:  NOAA Photo Library/Wikimedia Commons/Public Domain
The largest whale species, the blue whale can reach lengths of about 110 feet.