Tiny Knee Bone, Once Lost in Humans, Is Making a ComebackTiny Knee Bone, Once Lost in Humans, Is Making a Comeback
Tiny Knee Bone, Once Lost in Humans, Is Making a Comeback
The fabella disappeared from our lineage millions of years ago, but over the last century, its presence in people’s knees has become more common.
Tiny Knee Bone, Once Lost in Humans, Is Making a Comeback
Tiny Knee Bone, Once Lost in Humans, Is Making a Comeback

The fabella disappeared from our lineage millions of years ago, but over the last century, its presence in people’s knees has become more common.

The fabella disappeared from our lineage millions of years ago, but over the last century, its presence in people’s knees has become more common.

physiology
Astronaut Study Shows Some Lasting Changes from Time in Space
Astronaut Study Shows Some Lasting Changes from Time in Space
Kerry Grens | Apr 11, 2019
Scott Kelly’s physiology, gene activity, and mental performance changed after time aboard the International Space Station, but mostly returned to normal once back on Earth.
Prenatal Exposure to Cannabis Affects the Developing Brain
Prenatal Exposure to Cannabis Affects the Developing Brain
Andrew Scheyer | Jan 1, 2019
Children born to moms who smoked or ingested marijuana during pregnancy suffer higher rates of depression, hyperactivity, and inattention.
Image of the Day: Wildebeest Fitness Tracker
Image of the Day: Wildebeest Fitness Tracker
Kerry Grens | Oct 25, 2018
Data gathered from GPS-equipped collars show the animals walk long distances over days without stopping for a drink.
Image of the Day: Cracked Skin
Image of the Day: Cracked Skin
Jef Akst | Oct 9, 2018
Micrometer-scale fractures in elephant skin results from the way the epidermis grows.
Muscle Master: Angela Dulhunty
Muscle Master: Angela Dulhunty
Anna Azvolinsky | Sep 1, 2018
Having pioneered the study of muscle physiology in mammals, she uncovered how ion channels enable muscle movement.
Infographic: The Role of Circadian Clocks in Muscle
Infographic: The Role of Circadian Clocks in Muscle
Diana Kwon | Sep 1, 2018
Timekeepers in muscle help mediate metabolism, and may influence neurological processes such as sleep.
Muscle Clocks Play a Role in Regulating Metabolism
Muscle Clocks Play a Role in Regulating Metabolism
Diana Kwon | Sep 1, 2018
Just 20 years ago, scientists didn’t even realize muscles had their own circadian clocks. Now they are beginning to appreciate their importance in health. 
How Muscles Age, and How Exercise Can Slow It
How Muscles Age, and How Exercise Can Slow It
Gillian Butler-Browne, Vincent Mouly, Anne Bigot, Capucine Trollet | Sep 1, 2018
Researchers untangle the multifarious nature of muscle aging. So far, the only reliable treatment is exercise.
Heather Massey Respects Water
Heather Massey Respects Water
Shawna Williams | Aug 1, 2018
The University of Portsmouth sports scientist and open-water swimmer investigates the human body’s response to extreme conditions.