Ethics

Longevity startups are riding high as a wave of gene therapies advance through clinical trials. Can they actually turn back the clock?

Autism is highly heritable—but is it a disease? Should it be cured? Could screening for it lead to eugenics? We explore the complicated landscape.

Oregon’s grand experiment in training psychedelic facilitators is facing a tangle of ambiguity and red tape.

Researchers have designed a light-activated genetic kill switch to prevent male chicks from hatching, since they have no economic value.

A book about shamanic journeys in the backyard and another about the dietary wisdom of roaming herbivores.

A new technique for same sex conception for men raises some tricky questions.

Humans are forever altering these mythical islands through unnatural selection. Rewilding them entails finding a delicate balance between the needs of turtles, tourists—and local residents.

As organ-on-a-chip technology comes of age, the bipartisan FDA Modernization Act 2.0 would remove the requirement that new drugs must undergo animal testing before human clinical trials.

The artist and writer is thinking about multiple intelligences, life at the end of the future, and new ways of being.

An insider’s view of the effort to decode and model the entire immune system.