Celebrate World Bear Day!
The joy and concern we feel on World Bear Day perfectly represents our complicated—and sometimes contradictory—feelings about these massive mammals.
Ghost Cats of the East
Why do people claim to see cougars in the eastern United States when the cats are now extremely rare in that part of North America?
Can We Protect Against Coronavirus by Rewriting Our Genomes?
Genome recoding could offer new modes of virus resistance, but the technology raises serious ethical concerns.
What’s Causing the Rise of Hoarding Disorder?
Now that the DSM lists severe hoarding as a disorder apart from OCD, psychologists are asking what explains its prevalence.
Would You Like Phthalates with That?
People who like dining out have 40 to 55 percent higher phthalate levels than those who eat at home.
Unveiling Nature’s Mysteries: Mutant Sea Stars, Junk Jellyfish, and Duck Sex
Confront nature's mysteries, scientists find mutant sea stars surviving in warming waters and that sexual competition forces ducks to grow longer penises.
Natural and Man-Made Disasters, from Atom Weather to Fire Ants
Mother Nature’s wrath can be unpredictable and random, but history shows that humankind is ultimately responsible for many "natural disasters."
A Resurgence of Deforestation in the Brazilian Amazon
Deforestation in Brazil’s Amazon increased sharply in 2016. The government must take steps to protect the world’s largest rain forest.
Why Does Saturn Have Rings?
Every school child will recognize a photo of Saturn. The squash-colored planet is orbited by distinctive rings, easily visible ...