Uncategorized
- Life
50 years ago, scientists were unlocking the secrets of bacteria-infecting viruses
In 1969, a bacteria-infecting virus held promise for unlocking the secrets of viral replication. Fifty years later, the virus is a versatile tool for scientists.
- Life
How emus and ostriches lost the ability to fly
Changes in regulatory DNA, rather than mutations to genes themselves, grounded some birds, a study finds.
- Astronomy
This planetary remnant somehow survived the death of its sun
A small, sturdy piece of planet survived the collapse of its sun and now orbits the dead star.
- Animals
Cats recognize their own names
A new study suggests that cats can tell their names apart from other spoken words.
- Plants
A major crop pest can make tomato plants lie to their neighbors
Insects called silverleaf whiteflies exploit tomatoes’ ability to detect damage caused to nearby plants.
- Planetary Science
Metal asteroids may have once had iron-spewing volcanoes
Two groups of scientists introduce the idea of “ferrovolcanism,” or iron volcanoes, that could have occurred on metal asteroids like Psyche.
- Psychology
What we know and don’t know about how mass trauma affects mental health
Three people connected to mass shootings have recently killed themselves. Here’s what we know, and don’t, about the lingering effects of mass trauma.
- Animals
Tiny pumpkin toadlets have glowing bony plates on their backs
Pumpkin toadlets are the first frogs found to have fluorescent bony plates that are visible through their skin under ultraviolet light.
- Paleontology
New fossils may capture the minutes after the dinosaur-killing asteroid impact
North Dakota fossils may depict the aftermath of the dinosaur-killing asteroid, but controversial claims about the breadth of the find are unproven.
- Materials Science
Bacteria can be coaxed into making the toughest kind of spider silk
Lab-altered bacteria have made a copy of a spider’s strongest silk strands, which could one day be used to make more sturdy materials.
- Anthropology
Foreigners may have conquered ancient Egypt without invading it
Dental evidence suggests female Hyksos immigrants married into power.
- Genetics
A Nobel Prize winner argues banning CRISPR babies won’t work
Human gene editing needs responsible regulation, but a ban isn’t the way to go, says Nobel laureate David Baltimore.
