As algae blooms increase, scientists seek better ways to predict these toxic tides

Scientists around the United States are developing programs that can predict harmful algal blooms in advance.

There’s method in a firefly’s flashes

Fireflies use their flashing lights for mating and maybe even to ward away predators.

How salamanders can regrow nearly complete tails but lizards can’t

Differences in stem cells in the spinal cord explain the amphibians’ ability.

Pregnant women’s use of opioids is on the rise

The rate of opioid use during pregnancy more than quadrupled in 28 U.S. states, prompting physicians…

A newly approved drug could be a boon for treating malaria

Tafenoquine could help prevent the recurring form of malaria, but the drug may also be dangerous…

Nasty stomach viruses can travel in packs

Contained clusters of rotavirus and norovirus caused more severe infections in mice than the same viruses…

In a conservation catch-22, efforts to save quolls might endanger them

After 13 generations isolated from predators, the endangered northern quoll lost its fear of them.

What we know — and don’t know — about a new migraine drug

A migraine prevention drug was recently approved by the U.S. Food and Drug Administration. But some…