Biology

Tiny DNA tweak flips biological sex, researchers report

A study reports that a single nucleotide variant in the genome can make an XY individual develop as female and an XX individual develop as male.

Laboratory mice.
 Ryugu.

Space sample reveals all five building blocks of DNA, scientists say

A woman drinking water

Anxious thoughts about aging may speed biological wear and tear, research says

Temnothorax kinomurai ants.

All-queen ant shocks science: Japanese–German team finds species with no males or workers


Have you been having a bad hair day? Blame your genes

The study is the first gene-mapping study on human scalp hair whorls.

 Woman with long, curly, brown hair.

Do we need to change the definition of 'life' to find it among the stars?

As long as astronomists continue to search for life outside the borders of our world, biologists are forced to continue to reconsider the meaning of the word "life."

Illustrative image of wildlife.

Microbiome may influence the health of some people diagnosed with autism

A collaborative study involving Israel, the US, Europe, Ecuador, Russia, and China reveals promising insights into the gut-brain axis in autism spectrum disorder.

 The brain (illustrative).

Step this way: When did humans learn how to walk upright? - study

Through digitally recreating the muscles of an early human ancestor, research has shed new light on how humans evolved to walk upright.

 Illustrative depiction of the Australopithecus Afarensis

What advantages did curly hair give to our early human ancestors?

Life before air conditioning: Curly hair kept early humans cool and protected early humans from the sun’s radiative heat.

 Woman with long, curly, brown hair.