News
- Animals
Hormone still rules no-tadpole frogs
Coqui frogs may skip the tadpole stage, but within the egg, they undergo a metamorphosis ruled by thyroid hormone.
-
Brain cells work together to pay attention
Cells in the brain's cortex may coordinate their electrical activity as attention shifts from visual to tactile information.
- Earth
Hey polluters! This billboard’s for you
Motorists generally like and respond to personalized billboard messages about when an engine tune-up may be warranted.
- Health & Medicine
HIV sexual spread exploits immune sentinels
The virus that causes AIDS latches onto a protein called DC-SIGN to hitch a ride on immune cells in mucus membranes and spread through the body.
