Guppies exposed to predators tend to aggregate into smaller, more tightly knit groups, which may allow them to coordinate their predator avoidance strategies. Jason G. Goldman reports.
DNA of 500-year-old bacteria is first direct evidence of an epidemic — one of humanity's deadliest — that occurred after Spanish conquest.
Critters living more than six miles below the ocean surface contain high levels of harmful compounds like PCBs and flame retardants. Julia Rosen reports.
The intricate development of the fetus is yielding its long-held secrets to state-of-the-art molecular technologies that can make use of the mother's blood
The low-oxygen waters of the dead zone in the Gulf of Mexico result in smaller shrimp, and a spike in large shrimp prices. Christopher Intagliata reports.
Disregarding new scientific information can be deadly
New research suggests that as weather patterns changed some 30,000 years ago in Australia, megafauna went extinct
The amphibians' saliva is what's known as a "shear-thinning fluid," like ketchup—sometimes thick, sometimes thin and flowing. Christopher Intagliata reports.
Distantly-related plants acquired their ability to eat meat through similar genetic changes
Drug patents and environmental regulations feature in upcoming court cases as Trump nominates a justice
More plastic in the oceans, found at greater depths than thought, would mean a bigger threat to environmental—and possibly human—health
Earth's biosphere has bathed the lunar surface for billions of years
Our metabolic engine fueled the emergence of hallmark traits
Nomadic jellyfish and poisonous puffer fish are the poster children of an invasion of non-native species into the Mediterranean, with environmental and economic costs. Christopher Intagliata reports.
Until this obstacle is overcome, the technology is unlikely to succeed in the wild
The critically endangered birds have done well in captive breeding, meaning they may be ready once more for wild living, and the repertoire of calls associated with it. Jason G. Goldman reports.
Trevor Mundel, president of global health at the Gates Foundation, talks to Scientific American editor-in-chief Mariette DiChristina about the Coalition for Epidemic Preparedness Innovations (CEPI) and the efforts to create vaccine platforms for rapid responses to epidemics.
Michael Eisen hopes a victory in 2018 will bring a new scientific voice to the U.S. legislature
The cichlid, a small fish, has one of the most incredible visual systems known—which allows it to adapt to differently colored environments. Jason G. Goldman reports.