
Did poop fuel paleontology’s vaunted Cambrian explosion?
The Cambrian explosion is a critical moment for life on Earth—and it may have been all about poop

Did poop fuel paleontology’s vaunted Cambrian explosion?
The Cambrian explosion is a critical moment for life on Earth—and it may have been all about poop

Humans’ sense of smell is still evolving
A genetic study shows how smell capabilities were maintained in a hunter-gatherer population

New psychedelic clinics treat rare post-trip harms
As psychedelic therapies expand, new clinics treat uncommon long-term harms

Scientists are using AI to design new viruses. Should they be?
Research is outpacing regulation to govern artificial-intelligence-designed biology

Trump issues executive order aimed at rewriting childhood vaccine schedule
The president called for the combined measles, mumps and rubella (MMR) vaccine to be split into separate shots, despite decades of research showing that the MMR vaccine is safe and effective

Colombia rocked by 7.4 magnitude earthquake—its largest in the past decade
This seismic event is of a similar magnitude to the pair of earthquakes that hit Venezuela in June

Dogs know when humans are happy—and it shows in their brains
Dogs are known to recognize and respond to human facial expressions, but a new study shows how deeply they understand our mood

Cyclosporiasis-linked Taylor Farms recalls jalapeños tied to Salmonella outbreak
This summer has been marked by multiple outbreaks of foodborne illness, with thousands of infections and two deaths arising from cyclosporiasis and hundreds of cases of Salmonella infections

World ocean temperatures hit extreme new record for July
July also saw its second-highest air temperatures on record this year

How the ‘happy ending problem’ launched a new branch of math—and a romance
A puzzle about dots on a page led to one of the most profound areas of modern math

Damaged sperm might be the true cause of repeated miscarriages
New guidelines say testing sperm for DNA damage could help explain recurrent pregnancy losses

Can ‘magic mushrooms’ help treat cocaine dependence?
Psychedelic-assisted therapy could open a new path for treating cocaine use disorder, which has no approved medications yet