Life
- Paleontology
A deer-sized T. rex ancestor shows how fast tyrannosaurs became giants
A newly found dinosaur called Moros intrepidus fills a hole in the evolutionary history of tyrannosaurs, helping narrow when the group sized up.
- Life
Physics explains how pollen gets its stunning diversity of shapes
These pollen patterns can all be explained by one simple trick of physics: phase separation.
- Neuroscience
Brain cells combine place and taste to make food maps
A select group of brain cells responds to both flavor and location, a specialty that may help an animal find the next good meal.
- Animals
50 years ago, DDT pushed peregrine falcons to the edge of extinction
In 1969, peregrine falcons were at risk of extinction. But a ban on the pesticide DDT and new captive breeding programs allowed the raptors to recover.
- Life
Slow sperm may fail at crashing ‘gates’ on their way to an egg
A new study describes how sperm navigate narrow straits in the reproductive tract’s obstacle course to reach an egg.
- Animals
A rare, ancient case of bone cancer has been found in a turtle ancestor
A 240-million-year-old fossil reveals the oldest known case of bone cancer in an amniote, a group that includes mammals, birds and reptiles.
- Artificial Intelligence
Readers marvel at AI, space missions and wombat poop
Readers had comments and questions about defining artificial intelligence, the New Horizons space mission and more.
- Neuroscience
Brain discoveries open doors to new treatments
Editor in Chief Nancy Shute discusses the history of neuroscience and new techniques scientists are using to influence the brain.
- Neuroscience
Brain scans decode an elusive signature of consciousness
Newly described patterns of brain activity may help reveal the level of awareness in people with brain injuries.
- Genetics
DNA reveals early mating between Asian herders and European farmers
A new genetic analysis could upend assumptions about the origins of Indo-European languages.
- Health & Medicine
In some cases, getting dengue may protect against Zika
A Zika outbreak in a Brazilian slum suggests that the timing of dengue infections may matter for protection against Zika.
- Life
Evolutionarily, grandmas are good for grandkids — up to a point
Women may live past their reproductive years because they help their grandchildren survive, but there are limits to that benefit.
