World Jellyfish Day Nov. 3, 2025

World Jellyfish Day

They don"t have brains, bones or even hearts, yet jellyfish have pulsed through Earth"s oceans for half a billion years. Today, on World Jellyfish Day, these wobbly wonders get their moment in the sun—or at least under the sea. The day promotes efforts to protect jellyfish habitats from threats like pollution, nutrient-rich runoff and ocean acidification.

© Christian Vizl/TANDEM Stills + Motion

palette

Today in History

An experiment in sustainability
Nov. 3, 2023World Jellyfish Day
Nov. 3, 2024International Day for Biosphere Reserves

More Desktop Wallpapers:

Mar. 9, 2026Grey seal sleeping on the beach, Orkney Islands, Scotland
A grizzly bear sanctuary
Mar. 27, 2025World Theatre Day
Jul. 21, 2025Coral Reef Awareness Week
Aug. 13, 2024Telašćica Nature Park, Dugi Otok, Croatia
A day of swing and celebration
Jan. 21, 2024Eurasian red squirrel, Netherlands
An old bridge in a new light
Jun. 24, 2025Delicate Arch, Arches National Park, Utah, United States
Apr. 28, 2024El Capitan in the Guadalupe Mountains National Park, Texas, USA
Nov. 10, 2024Caribbean flamingos, Yucatán Peninsula, Mexico
Aug. 29, 2023Zelenci Nature Reserve, Slovenia
A sea of humanity
Jewel of the Adriatic
Apr. 8, 2024Total solar eclipse
Feb. 11, 2025Yungang Grottoes, Datong, China
Why are blackbirds tied to winter?
A UNESCO World Heritage Site
Feb. 19, 2024Toledo, Spain
Dec. 17, 2023Bohemian waxwings
Beauty resides in trees
Jul. 8, 2024Blueberries growing in the wild
Apr. 11, 2026Sakura Days Japan Fair
May 14, 2024Carlsbad Caverns National Park, New Mexico, USA
Man-made, meandering Lake Powell
Sep. 20, 2024Ocracoke Lighthouse on Ocracoke Island, North Carolina, USA
Jan. 21, 2025Squirrel Appreciation Day
Were halfway there
World Hippo Day, a giant celebration
Jan. 31, 2026International Zebra Day