World Jellyfish Day 3 Nov 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

Living in harmony
3 Nov 2023World Jellyfish Day
3 Nov 2024International Day for Biosphere Reserves

More Desktop Wallpapers:

Living in harmony
12 Apr 2025International Day of Human Space Flight
3 Jan 2026JRR Tolkien Day
13 Jun 2025Vila Franca Islet, São Miguel Island, Azores, Portugal
The world’s greatest oasis?
7 Aug 2025Sweetheart Abbey, Dumfries and Galloway, Scotland
26 Apr 2024Tree of Life, Olympic National Park, Washington, USA
23 Jul 2026Pink dahlia flower
An old bridge in a new light
14 Apr 2024Bowling Ball Beach, California, USA
Behold the architectural marvel
8 Mar 2024International Womens Day
12 Feb 2024Darwin Day
28 Nov 2024City Hall, London, England
29 Jul 2026International Tiger Day
27 Feb 2026International Polar Bear Day
An endless stretch of sky
Ahead of the curve
26 Jul 2024Summer Olympics begin in Paris
Passing with flying colours
27 May 2025Mona Vale rockpool, Sydney, Australia
13 Feb 2026Third Thai-Lao Friendship Bridge connecting Laos and Thailand
Staying in the loop
12 May 2024Skiddaw, Lake District National Park
Happy St Andrews Day!
21 Nov 2025World Hello Day
29 Dec 2024Borobudur temple, Java, Indonesia
Taking the long view
A legend sprung from the ground
9 Nov 2024Aït Benhaddou, Morocco