The neuronal coverings that mediate synaptic changes are involved in everything from memory to psychiatric disorders, affecting autism, Alzheimer’s, and addiction.

Research into the biological basis of gender identity is in its infancy, but clues are beginning to emerge.

New technologies reveal the dynamic changes in mouse and human embryos during the first week after fertilization.

No two neurons are alike. What does that mean for brain function?

A few kilograms of DNA could theoretically store all of humanity’s data, but there are practical challenges to overcome.

Scientists are beginning to unravel the mechanisms behind the therapeutic effects of psychedelic drugs.

Regularly taking breaks from eating—for hours or days—can trigger changes both expected, such as in metabolic dynamics and inflammation, and surprising, as in immune system function and cancer progression.

From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.

Introducing genetic changes into mosquito populations could be key to effective malaria control.

Solving a long-standing structural puzzle will open the door to understanding one of the cell’s most enigmatic machines.