6,878 results
6,878 results for: Bears
- Humans
Animal hybrids may hold clues to Neandertal-human interbreeding
The physical effects of interbreeding among animals may offer clues to Neandertals’ genetic mark on humans.
- Paleontology
Fossil worm adds head to its spiny appearance
Hallucigenia sparsa gives hints to how some animals ended up with teeth in their guts and platelike pieces around their mouths.
- Neuroscience
Itch-busting nerve cells could block urge to scratch
A group of nerve cells in the spinal cord keep mechanical itch in check.
- Animals
Why we need predators
It might be easy to say that we should wipe out species that can kill us. But the effects of such action would be far ranging.
- Anthropology
Ancient hominids used wooden spears to fend off big cats
Saber-toothed cat remains suggest ancient hominids used wooden spears as defensive weapons.
- Archaeology
Ancient stone tools raise tantalizing questions over who colonized Sulawesi
Hominids reached an island not far from hobbits’ home by around 200,000 years ago.
- Astronomy
Big exoplanet may be surrounded by helium
Warm Neptune-sized exoplanet might have atmospheres filled with helium.
- Cosmology
Complexity in the universe, hidden craters and more reader feedback
Readers discuss order and disorder in the universe, the languages of science communication and more.
- Earth
Iron-loving elements tell stories of Earth’s history
By studying geochemical footprints of rare elements, researchers get a glimpse of the planet’s evolution.
- Life
Grizzly bears master healthy obesity
Tuned insulin signals explain how grizzly bears can fatten up for hibernation in the winter without developing diabetes.
- Animals
Animal moms sacrifice a lot — sometimes even themselves
In the animal kingdom, there are bad mothers and good ones — and then there are those that let their kids eat them.
- Archaeology
Honeybees sweetened early farmers’ lives
Residue on pottery pegs ancient farmers as devotees of honeybee products.
