Biology

The unintentional creation of “sturddlefish” hybrids may illuminate the genomic mechanisms that govern whether species can interbreed.

Readers simulated the genetics of dog breeding to solve a puzzle about mixed breed percentages and sexual reproduction.

Plants ignore the most energy-rich part of sunlight because stability matters more than efficiency, according to a new model of photosynthesis.

Researchers are examining the power of subtle genetic weaknesses in the immune system to affect the severity of infectious diseases, including COVID-19.

John Priscu’s search for life that thrives under ice took him to subglacial lakes at the South Pole. Now he has his eye on Mars and Europa.

To recognize strange extraterrestrial life and solve biological mysteries on this planet, scientists are searching for an objective definition for life’s basic units.

The heartbeat and other bodily processes play a surprising role in shaping perception and cognition.

Herd immunity differs from place to place, and many factors influence how it’s calculated.

Cosmic rays may have given right-handed genetic helixes an evolutionary edge at the beginning of life’s history.