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National Museum of Natural History

Two-toed sloths (Choloepus hoffmanni) live in the canopy layer of the Panamanian rainforest. Find out why in a family program streaming July 17. (Smithsonian Tropical Research Institute, Punta Culebra Nature Center)

Five Free Natural History Programs Streaming in July

Head scientist at the Smithsonian Marine Station, Valerie Paul, collects blue-green algae samples to study the chemicals they emit. Those chemicals can endanger coral reefs, but also have biomedical potential. (Raphael Ritson-Williams)

Meet the Marine Scientist Studying How Algae Communicates

A giant replica of the Aedes mosquito, a known vector for the disease yellow fever, has been waiting for visitors to return the National Museum of Natural History’s “Outbreak: Epidemics in a Connected World” exhibit. (James Di Loreto, Smithsonian)

Don’t Miss These Objects When the Smithsonian's Natural History Museum Reopens

This jellyfish, Scolionema suvaense, was raised in the National Museum of Natural History’s Invertebrate Zoology “AquaRoom.” Here, the species is sinking through food with its tentacles spread wide. (Allen Collins, Smithsonian)

Live Jellyfish Make a Splash in Marine Education

While this year’s Arctic sea ice extended further than last year’s, there still wasn’t as much of it as there was only two decades ago. Thinner and younger sea ice in winter and less ice in the summer are two of the many elements of the Arctic’s new reality. (Credit: Patrick Kelley, U.S. Coast Guard. Public domain.)

Climate Change Redefines What 'Normal' Means in the Arctic

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