Life
- Health & Medicine
Trained dogs sniff out COVID-19 as well as lab tests do
Dogs can be trained to sniff out COVID-19 cases. They’re overall as reliable as PCR tests and even better at IDing asymptomatic cases, a study suggests.
- Paleontology
Great white sharks may have helped drive megalodons to extinction
Analyzing zinc levels in shark teeth hints that megalodons and great whites competed with each other for food.
- Animals
An ‘acoustic camera’ shows joining the right boy band boosts a frog’s sex appeal
Serenading with like voices may help male wood frogs woo females into their pools, analysis of individual voices in a frog choir shows.
- Life
High altitudes may be a climate refuge for some birds, but not these hummingbirds
After being moved to a spot high above their typical home, Anna’s hummingbirds seemed to struggle to hover in the thin air.
- Neuroscience
Headbutts hurt the brain, even for a musk ox
Though musk oxen are built to bash, a study of the headbutters turned up signs of brain damage. But that may not be catastrophic for the bovids.
- Ecosystems
Biocrusts reduce global dust emissions by 60 percent
Lichens and other microbes construct biological soil crusts that concentrate nutrients and slash global dust emissions.
- Animals
‘Wandering’ salamanders glide like skydivers from the world’s tallest trees
Using their legs and tail, these amphibians have impressive control over their daring dives from coast redwood canopies.
- Plants
These are the first plants grown in moon dirt
The first attempt to grow plants in Apollo samples from the moon shows the promise and potential struggles of farming in lunar soil.
- Life
Caribou gut parasites indirectly create a greener tundra
Caribou merely sickened by parasites eat less vegetation, allowing plants to flourish.
- Animals
These dolphins may turn to corals for skin care
For Indo-Pacific bottlenosed dolphins, rubbing against corals and sea sponges that contain antibacterial compounds could help keep skin healthy.
- Science & Society
COVID-19 has killed a million Americans. Our minds can’t comprehend that number
We intuitively compare large, approximate quantities but cannot grasp such a big, abstract number as a million U.S. COVID-19 deaths.
- Animals
A ‘mystery monkey’ in Borneo may be a rare hybrid. That has scientists worried
Severe habitat fragmentation caused by expanding palm oil plantations may have driven two primate species to mate that wouldn’t have otherwise.
