Compact Fluorescent Lightbulbs
The amount of mercury in a CFL bulb does not pose much of an environmental hazard.
Podcast
HEARING & SOUND: Why hyenas are anything but funny. Can animals dance to a beat? Using sound to …
Immune Roundup
Paradoxically, having parasites could protect people from developing autoimmune diseases.
Liquid Calories
Cutting sugary liquids may have an extra advantage for weight loss.
Drying Rivers
Climate change and other factors are drying up many of the world's rivers.
Comet Roundup
Comets may have provided the young Earth the molecules necessary for the formation of life.
Nickel & Oxygen
A drop in nickel may have triggered the rise of oxygen on Earth.
Hungry Mosquitoes
Mosquitoes find their prey by following plumes of carbon dioxide.