Sleeping Birds
Birds, like people, show improvements in learning and memory after sleeping.
Synthetic Blood
Researchers have created synthetic red blood cells in the lab.
Sun Glints
Brief glints of light reflected from distant planets may reveal the presence of liquid water or ice.
Podcast
ANIMALS: DNA analysis confirms virgin birth in sharks, bonobos are forever young, elephant genes …
Value of Most
English speakers agree on a surprisingly narrow numerical value for the word "most."
Alzheimers Eye
An eye test could oneday screen for Alzheimer's disease early on.
Podcast
Sleeping birds, sperm wars, looking for water on distant planets, and the value of "most".