6,868 results
6,868 results for: Bears
- Ecosystems
Beavers are engineering a new Alaskan tundra
Climate change has enabled the recent expansion of beavers into northwestern Alaska, a trend that could have major ecological consequences for the region in the coming decades.
- Astronomy
Five things we learned from last year’s Great American Eclipse
A year after the total solar eclipse of 2017, scientists are still pondering the mysteries of the sun.
- Animals
EPA OKs first living pest-control mosquito for use in United States
Feds approve non-GM male tiger mosquitoes for sale as fake dads to suppress local pests.
- Genetics
Tardigrades aren’t champion gene swappers after all
Genetic studies reveal more secrets of the bizarre creatures known as tardigrades.
- Earth
Plate tectonics started at least 3.5 billion years ago
Analyses of titanium in rock suggest plate tectonics began 500 million years earlier than thought.
- Ecosystems
How mammoths competed with other animals and lost
Mammoths, mastodons and other ancient elephants were wiped out at the end of the last ice age by climate change and spear-wielding humans.
- Astronomy
NASA wants your help naming New Horizons’ next destination
NASA’s New Horizons mission team is asking the public to vote on a nickname for the spacecraft’s next destination.
- Earth
Diamonds reveal sign of the deepest water known inside Earth
A rare form of ice crystal in the gems could have formed only at the crushing pressures found in the mantle.
- Health & Medicine
Malaysia is ground zero for the next malaria menace
With deforestation in Malaysia, monkeys and humans are getting closer — and mosquitoes are infecting humans with malaria from monkeys.
- Life
More than 2 billion people lack safe drinking water. That number will only grow.
By 2050, half the world’s population may no longer have safe water to drink or grow food. What then?
- Anthropology
Ardi walked the walk 4.4 million years ago
Ancient hominid evolved upright stance without sacrificing climbing ability.
- Earth
Plate tectonics started at least 3.5 billion years ago
Analyses of titanium in rock suggest plate tectonics began 500 million years earlier than thought.
