Mammalian females ovulate periodically over their reproductive lifetimes, placing significant demands on their ovaries for egg production. Whether mammals generate new eggs in adulthood using stem cells has been a source ...
Cell & Microbiology
Apr 29, 2013
0
0
Inhibiting a molecular process cells use to direct proteins to their proper destinations causes more than 90 percent of affected mosquitoes to die within 48 hours of blood feeding, a UA team of biochemists found.
Biochemistry
Jul 18, 2011
5
0
Chickens are one of the most economically important animals in the world today. However, the story of their origins and dispersal across the ancient world is still poorly understood. In fact, new archaeological techniques ...
Archaeology
Apr 2, 2024
0
154
New research provides insight about the bedrock scientific principle that mitochondrial DNA—the distinct genetic code embedded in the organelle that serves as the powerplant of every cell in the body—is exclusively passed ...
Cell & Microbiology
Sep 18, 2023
0
356
Once thought of merely as fat storages, lipid droplets are now believed to play important roles in human health and fertility.
Cell & Microbiology
Jun 28, 2023
0
95
To many people, the sugars we eat may seem like a luxury that can do more harm than good. But now, researchers from Japan have discovered that in insects, dietary sugars play a key role in reproduction.
Plants & Animals
Feb 28, 2023
0
9
People are having children later than ever before. The average age of new parents in the United States has been rising for at least the past half century.
Cell & Microbiology
Mar 3, 2022
0
70
A trio of researchers with Capital Normal University in China has found evidence of a mother spider protecting her young in an amber sample dated back to 99 million years ago. In their paper published in Proceedings of the ...
Chemical additives used in plastic production have been found in herring gull eggs, new research shows.
Ecology
Jun 17, 2021
1
145
Many U.S. cities have established goals to increase local food self-reliance, suggesting that metropolitan areas do not produce enough food to support local household demand. However, a new study from researchers with the ...
Environment
Oct 1, 2018
0
60
