We summarize the week's scientific breakthroughs every Thursday.
Climate change is affecting microbes, and that has implications for all life on Earth.
Nearly one third of sharks studied near the Bahamas’ Eleuthera Island were found to have caffeine, painkillers and other drugs in their bloodstreams.
Platypuses are the first mammals known to have hollow melanosomes, pigment-bearing structures found in the hair of many animals.
A colony of African vervets in Dania Beach raises big questions about how humans can and should manage nonnative species.
A genetic mutation tied to keeping the brain healthy at high altitudes may point to a way to repair nerve damage, experiments in mice show.
A new analysis of a large fossil shinbone suggests T. rex ancestors came from North America instead of Asia. Not everyone agrees.
Environmental cues can flip a molecular switch in the brain, turning males from caregivers to killers.
An experiment mimicking conditions on the Saturn moon suggests that cell-like bubbles don’t form in methane lakes, puncturing hopes for alien life.
The Amazon molly reproduces without sex. A genomic copy-and-paste trick called gene conversion may explain how it avoids evolutionary meltdown.
