Juvenile manatees in a freshwater spring, Crystal River, Florida Mar 25, 2026

Manatees may seem slow and sleepy, but they have some surprising tricks under the surface. For starters, they are one of the few mammals that constantly replace their teeth. As old molars wear down from chewing gritty seagrass, new ones slowly roll forward like a conveyor belt—handy for an animal that eats for up to eight hours a day.

© Gregory Sweeney/Getty Images

palette

Today in History

Mar 25, 2024Tulip fields in Abbotsford, British Columbia, Canada
Mar 25, 2025European goldfinches

More Desktop Wallpapers:

Jan 28, 2025Short-eared owl
Dec 13, 2024St. Stephens Basilica, Budapest, Hungary
Nov 22, 2023Grand Teton National Park, Wyoming, USA
Apr 3, 2026Armbrug bridge, Amsterdam, Netherlands
Dec 3, 2025Sandhill cranes, Bosque del Apache National Wildlife Refuge, United States
Jan 25, 2024Ynys Llanddwyn, Wales, United Kingdom
Sep 28, 2025Town of Pienza in Tuscany, Italy
Jan 18, 2024Pont Alexandre III, Paris, France
Dec 7, 2024Arraial do Cabo, Brazil
Nov 13, 2023Serra de Tramuntana, Balearic Islands, Majorca, Spain
Apr 14, 2025Atlantic spotted dolphins near Santa Maria Island, Azores, Portugal
Aug 3, 2024Three Natural Bridges, Wulong National Park, China
Jan 30, 2026St. Michaels Mount in Marazion, Cornwall, England
Sep 16, 2023Splügen Pass, Switzerland
Sep 27, 2024Basilica of Santa Maria della Salute, Venice, Italy
Mar 22, 2026Lake Tanganyika, Africa
Mar 6, 2026The Wave, Vejle, Denmark
Aug 17, 2025Lyngvig Lighthouse, Hvide Sande, Denmark
Dec 18, 2025Temple of the Sun, Capitol Reef National Park, Utah, United States
Dec 23, 2023Chinstrap penguins
Jul 21, 2025Staghorn coral in shallow ocean
Jan 21, 2026Eurasian red squirrel
Feb 10, 2026Es Vedrà and Es Vedranell, Ibiza, Spain
May 16, 2024Ria de Vigo, Vigo, Spain
Oct 5, 2025Boreal owl
Nov 11, 2024Banff National Park, Alberta, Canada
Aug 24, 2024Katahdin Woods and Waters National Monument, USA
Nov 29, 2023Schwerin Castle on Lake Schwerin, Germany
Oct 12, 2025Saranac Lake, New York
Oct 16, 2025Eurasian lynx, Siberia