Search Results for: Bears
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Paleontology
Some of Earth’s extinct giants may have been smaller than thought
Evolving techniques and data indicate some ancient giants like Dunkleosteus and Megalodon may have been smaller than initial estimates suggested.
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Health & Medicine
Bird flu has infected a person after spreading to cows. Here’s what to know
H5N1 has wreaked havoc on birds around the globe and occasionally made the jump to mammals, including cows. The risk to people remains low.
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Climate
Summer-like heat is scorching the Southern Hemisphere — in winter
Warmer winters are fast becoming a global phenomenon and can affect everything from the food we grow to the spread of diseases.
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Animals
In a first, these bats were found to have toes that glow
Hairs on the toes of Mexican free-tailed bats fluoresce under UV light, a new study reports. The function of the toe glow is unknown.
By Jason Bittel -
Planetary Science
Sulfur was key to the first water on Earth
Hydrogen bonded with sulfur may have given our world its first water after the hydrogen broke away and joined with oxygen in the planet’s crust.
By Ken Croswell -
Life
Mega El Niños kicked off the world’s worst mass extinction
Long-lasting, widespread heat and weather extremes may have caused the Great Dying extinction event 252 million years ago.
By Jake Buehler -
Planetary Science
Scientists find a long-sought electric field in Earth’s atmosphere
The Earth’s ambipolar electric field is weak but strong enough to control the shape and evolution of the upper atmosphere.
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Animals
The Brazilian flea toad may be the world’s smallest vertebrate
Brazilian flea toads are neither a flea nor a toad, but they are almost flea-sized. The frogs are small enough to fit on a pinkie fingernail.
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Life
This is the first egg-laying amphibian found to feed its babies ‘milk’
Similar to mammals, these ringed caecilians make a nutrient-rich milk-like fluid to feed their mewling hatchlings up to six times a day.
By Jake Buehler -
Health & Medicine
Bird flu has been invading the brains of mammals. Here’s why
Although H5N1 and its relatives can cause mild disease in some animals, these viruses are more likely to infect brain tissue than other types of flu.
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Anthropology
50 years ago, evidence showed that an extinct human ancestor walked upright
Fossil finds have since pushed back the ability of hominids to walk on two legs by millions of years.
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Plants
This tentacled, parasitic ‘fairy lantern’ plant is new to science
The bizarre new plant from Malaysia parasitizes subterranean fungi and only briefly erupts from the soil to flower.
By Jake Buehler