Could real-time tracking of viral infections put a stop to future epidemics?
The waters of the Rio Grande are closely regulated. But what about the water hidden in aquifers deep below the Mexico-Texas border?
A sudden bridge collapse in Italy has sparked interest in the safety of structures worldwide.
Bear sightings at Yosemite National Park are down, but the park's infamous traffic poses a new threat.
Researchers have identified a gene in elephants that can detect and kill cells that have damaged DNA.