Theresa Machemer

Theresa Machemer is a freelance writer based in Washington DC. Her work has also appeared in National Geographic and SciShow. Website: tkmach.com

A cat-eyed snake eats a toad in Panama. Many snakes depend on amphibians and their eggs for nutrition.

Tropical Snakes Suffer as a Fungus Kills the Frogs They Prey On

Surveys of reptiles in central Panama show the ripple effects of an ecological crisis

The National Museum of China in Beijing is one of many institutions upping its online offerings in the wake of the coronavirus outbreak.

China's Art, From Museum Exhibits to Rock Concerts, Moves Online During Coronavirus Outbreak

The government has directed museums to "enrich the people's spiritual and cultural life during the epidemic [with] cloud exhibitions"

This is a graphic reconstruction of a male Stupendemys geographicus swimming in freshwater.

Gigantic Turtles Fought Epic Battles 10 Million Years Ago—and Have the Scars to Prove It

Their shells were 10 feet wide and equipped with foot-long horns on both shoulders

The Scream (1893) is Edvard Munch's most renowned work.

Why Are the Vibrant Colors of 'The Scream' Fading?

New analysis explores why unstable synthetic pigments in the painting are changing color from yellow to white

Around half of the university's 100 "manuscript cookbooks" are now available online.

Dozens of Historic Mexican Cookbooks Are Now Available Online

The University of Texas San Antonio's vast collection makes traditional Mexican and Mexican-American cooking accessible

The NIH, FDA, and VA have policies encouraging labs that conduct animal research to find adopters for healthy animals at the end of studies.

The F.D.A. Will Now Allow Lab Animals to Be Adopted

F.D.A. joins the National Institutes of Health and the Department of Veteran Affairs in adopting a lab animal retirement policy

Charles Dickens, seen at his desk in 1858

Charles Dickens Museum Acquires Trove of Author's Unpublished Letters

The London museum recently purchased more than 300 literary artifacts assembled by a private collector in the U.S.

Every few days, the crew of the Challenger would dredge the ocean floor for sediment and specimens.

Museum’s 150-Year-Old Plankton Have Thicker Shells Than Their Modern Counterparts

The HMS Challenger’s expedition in the 1800s provides a baseline for ocean health as the climate changes

The blue-throated barbet, illustrated here in 1871, is native to southern Asia.

You Can Now Download 150,000 Free Illustrations of the Natural World

The artworks, collected by the open-access Biodiversity Heritage Library, range from animal sketches to historical diagrams and botanical studies

Allene Goodenough (right) and Helyn James of the Young Women's Christian Association mop up a spot on the sidewalk where someone expectorated by an anti-spitting sign during a public health campaign in Syracuse, New York, in 1900.

When a Women-Led Campaign Made It Illegal to Spit in Public in New York City

While the efficacy of the spitting policy in preventing disease transmission was questionable, it helped usher in an era of modern public health laws

The left lobe of Pluto's distinctive heart is called Sputnik Planitia, covered with craterless plains of frozen nitrogen that vaporize each day.

Pluto Has a Nitrogen Heartbeat

Nitrogen on the dwarf planet’s glacial 'heart' becomes vapor each day and freezes each night

Bees from the nest structures: A) Head, side, top and bottom views of bees found inside the cells, B) drawing of Eufriesea surinamensis and photograph of the head of a modern bee taken by David Roubik

150-Year-Old Mummified Bee Nests Found in Panama City Cathedral

The nests, covered in gold leaf and paint, act as a time capsule for the surrounding environment circa 1870

A new analysis of 12,000- to 16,000-year-old pottery fragments suggests ancient Siberians navigated the harsh ice age climate with the help of "hot pots."

Siberian Hunters Cooked in 'Hot Pots' at the End of the Last Ice Age

Chemical analysis of the cookware reveals the diets of two ancient Siberian cultures

To escape loud noises, sperm whales have been known to swim to the surface too quickly and give themselves the bends.

Whales Struggled to Find Food After New Zealand’s 2016 Earthquake

Sperm whales are at the top of the food chain, and the effects of undersea landslides rippled up

Desert locusts cover branches in Katitika village, Kitui county, in Kenya on Friday, January 24. Kenya hasn't seen locust swarms of this size in 70 years.

Billions of Locusts Are Swarming East Africa

The swarms were sparked by the unusually high number of cyclones in 2019

View of the bow of the R.M.S. Titanic, as photographed by an ROV in June 2004

Court Case Alleges Submarine Collision With Wreck of the Titanic Went Unreported

During a 2019 dive, a white fiberglass vehicle sent to explore the site of the wreck resurfaced with a red stain on its side

Wave action in December collapsed part of the Olympic Discovery Trail in Port Angeles, Washington. Passersby began to notice ancient human remains a few weeks later.

Father and Four-Year-Old Son Find Ancient Human Remains While Biking in Washington State

Erosion along the Olympic Discovery Trail has exposed ancient bones on three separate occasions in January

The Moai sculptures on Rapa Nui are at risk of collapsing into the ocean as coastal erosion continues.

New Tool Tracks Climate Change's Impact on World Heritage Sites

The online portal showcases the craggy cliffs surrounding Edinburgh Castle, Easter Island's famed sculptures and other cultural heritage hotspots

European honeybees are used by commercial beekeepers worldwide to pollinate crops and produce honey.

These Bees Fight Varroa Mites With Help From Special Engineered Bacteria

Honeybees with engineered microbiomes were more likely to survive both mites and the viruses they carry

Churchill painted Lake Scene at Norfolk with bright colors inspired by Impressionists like Monet sometime in the 1930s.

See Winston Churchill's Little-Known Art

Best known for serving as Britain's prime minister during World War II, Churchill was also an amateur painter and avid writer

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