Neandertal genes in people today came from hook-ups around 47,000 years ago
Two genetic analyses clarify when Neandertal genes infiltrated Homo sapiens DNA
Eavesdropping on fish could help us keep better tabs on underwater worlds
Scientists are on a quest to log all the sounds of fish communication. The result could lead to better monitoring of ecosystems and fish behavior.
Daddy longlegs look like they have two eyes. That doesn’t count the hidden ones
Two sets of vestigial eyes shed light on the arachnids’ evolutionary history
More than 1 billion people worldwide are now estimated to have obesity
The chronic disease affects roughly one-eighth of the global population
Parrots can move along thin branches using ‘beakiation’
The sidestep involves shuffling across the underside of a branch using both feet and the beak
Human footprints in New Mexico really may be surprisingly ancient, new dating shows
The tracks suggest humans arrived in North America thousands of years earlier than was thought
The thymus withers away after puberty. But it may be important for adults
Removing the thymus is associated with higher rates of death and cancer, a new study finds
Canada’s Crawford Lake could mark the beginning of the Anthropocene
The proposed geologic epoch denotes when humans began profoundly changing the planet
Bottlenose dolphin moms use baby talk with their calves
Mothers modify their signature whistles when their babies are near
Brain cavities that swell in space may need at least 3 years to recover
Astronaut brains need time to recover before they can adapt to microgravity again
19th century painters may have primed their canvases with beer-brewing leftovers
Brewer’s yeast proteins turned up in several works by two of Denmark’s most famous artists
WHO declares an end to the global COVID-19 public health emergency
It marks a shift to long-term measures to handle the coronavirus
The U.S. COVID-19 public health emergency is ending. What does that mean?
Set to expire May 11, the declaration made tests, vaccines and treatments free to the public
Ultrasound allows a chemotherapy drug to enter the human brain
An early-stage clinical trial shows promise for people with a treatment-resistant brain cancer
Pets and people bonded during the pandemic. But owners were still stressed and lonely
While pets provide companionship, they also add extra responsibilities
Native language might shape musical ability
A global study offers another peek at how language influences cognition
A prehistoric method for tailoring clothes may be written in bone
A punctured bone fragment predates eyed needles in Western Europe by about 15,000 years
The Smithsonian’s ‘Lights Out’ inspires visitors to save the fading night sky
The exhibition explores the harms of light pollution and how to reduce them