Life
- Animals
Desert ants look to the sky, rely on memory to navigate backward
Desert ants appear to use a combination of visual memory and celestial cues to make it back to the nest walking butt-first, researchers find.
- Animals
How desert ants navigate walking backward
Desert ants appear to use a combination of visual memory and celestial cues to make it back to the nest walking butt-first, researchers find.
- Ecosystems
In debate over origin of fairy circles, both sides might be right
Odd bare spots called fairy circles in African grasslands might be caused by both termites and plants.
- Life
A message to rock climbers: Be kind to nature
Scientists are only just starting to figure out the impacts that the sport of rock climbing is having on cliff ecosystems.
- Earth
Coastal waters were an oxygen oasis 2.3 billion years ago
Coastal waters contained enough oxygen to support complex life-forms including some animals hundreds of millions of years before fossils of such life first appear.
- Life
Here’s how earwax might clean ears
Science seeks inspiration in earwax for dreams of self-cleaning machinery.
- Neuroscience
How mice use their brain to hunt
Messages from the brain’s amygdala help mice chase and kill prey.
- Life
Shimmering soap bubbles have a dark side
Merging dark spots are indicators that a bubble is about to burst.
- Animals
It takes guts for a sea spider to pump blood
Most sea spiders have hearts, but what really gets their blood flowing are gut contractions.
- Neuroscience
Pain promoter also acts as pain reliever
A pain-sensing protein also regulates activity of pain-relieving opioids.
- Paleontology
Ancient oddball invertebrate finds its place on the tree of life
Ancient marine invertebrates called hyoliths may be more closely related to modern horseshoe worms than mollusks, a fossil analysis finds.
- Paleontology
Readers weigh in on dinos, dark matter and more
Ancient bird calls, the search for dark matter and more in reader feedback.
