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mummy
Scratchy Scalps Help Glue Together Pieces of an Ancient Past
Scientists find human DNA preserved in lice cement from the heads of South American mummies.
Scratchy Scalps Help Glue Together Pieces of an Ancient Past
Scratchy Scalps Help Glue Together Pieces of an Ancient Past

Scientists find human DNA preserved in lice cement from the heads of South American mummies.

Scientists find human DNA preserved in lice cement from the heads of South American mummies.

hair
a microscope image of mouse fur
Some Mammals May Use Specialized Hairs to Detect Predators’ Heat
Amanda Heidt | Dec 16, 2021 | 2 min read
When observed under a microscope, guard hairs from mice resemble optical sensors used in thermal cameras to detect heat, according to a new study.
High Stress Hormone Levels Halt Mouse Fur Growth
Jef Akst | Apr 1, 2021 | 4 min read
Corticosterone interferes with signaling in the skin that normally activates hair follicle stem cells, possibly explaining the link between stress and hair loss.
Stress Turns Hair Gray By Depleting Pigment-Producing Stem Cells
Ashley Yeager | Jan 23, 2020 | 2 min read
In mice, the fight-or-flight response overactivates the cells, causing a drop in their numbers, which leads to loss of hair color.
Image of the Day: Hair Strength
Emily Makowski | Dec 18, 2019 | 2 min read
Thin strands tend to be stronger than thick ones.
zebra hair temperature regulation thermoregulation adaptations color air
Image of the Day: Hot Stripes
Chia-Yi Hou | Jun 14, 2019 | 1 min read
Biologists study how a zebra’s hair helps it keep cool.
hair analysis drug testing forensics doping test
Technique Improves Use of Hair for Drug Tests
Chia-Yi Hou | May 15, 2019 | 3 min read
Researchers develop a washing method that is better at removing drugs that have contaminated hair from the outside than existing protocols.
Merino Sheep Provide Clue to Curly Hair
Catherine Offord | Mar 23, 2018 | 2 min read
The cells on one side of each wool fiber are longer than the cells on the other, researchers find. 
Source of Scales, Feathers, Hair
Tanya Lewis | Jun 27, 2016 | 1 min read
Reptiles, birds, and mammals all produce tiny, bump-like structures during development.   
Scalp Microbiome Linked to Dandruff Severity
Catherine Offord | May 12, 2016 | 1 min read
Researchers identify differences in the composition of microbial species living on the scalps of people with different levels of dandruff.
Getting to the Root
Catherine Offord | Mar 2, 2016 | 2 min read
A study reveals the genes underpinning hair’s characteristics, from its color to its tendency to grow on the face.
Capsule Reviews
Bob Grant | Mar 1, 2016 | 3 min read
Herding Hemingway's Cats, Hair: A Human History, Restless Creatures, and The Mind Club
Stem Cells to Blame for Hair Loss?
Jef Akst | Feb 8, 2016 | 1 min read
Two new studies point to factors in hair follicle stem cells as players in age-related hair loss.
Microbes Could Help Solve Sex Crimes
Kerry Grens | Dec 17, 2014 | 1 min read
Microbial species found in pubic hair samples could help track down criminals.
Honeybee Compound for Hair Loss?
Jef Akst | Dec 11, 2014 | 1 min read
Propolis, a natural product used by honeybees to repair their hives, stimulates hair growth in shaved mice.
Growth Factor Regulates Hair Color
Tracy Vence | Jun 2, 2014 | 1 min read
Researchers pinpoint a gene enhancer that contributes to blond locks in humans.
A Hair-Raising Solution?
Dan Cossins | Sep 1, 2013 | 4 min read
In the long-fought battle against baldness, researchers are finally identifying molecular pathways that can be manipulated to generate new hair follicles.
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