Life
We summarize the week's scientific breakthroughs every Thursday.
- Genetics
AI generated its first working genome: a tiny bacteria killer
Bacteriophages designed with AI kill E. coli faster than a well-studied strain, but the tech needs regulation before moving beyond lab dishes.
- Health & Medicine
Scientists made human egg cells from skin cells
More work needs to be done to create viable human embryos, but the method might someday be used in IVF to help infertile people and male couples.
- Paleontology
What may be one of Earth’s earliest animals has a punk rock vibe
Squiggly markings like a punk rock hairdo led researchers to identify the remains as spongelike animals that may have lived around 560 million years ago.
- Animals
Meet the ‘grue jay,’ a rare hybrid songbird
Despite millions of years of evolutionary separation and a geographical divide, a blue jay and green jay mated in Texas. This bird is the result.
- Animals
Is camouflage better than warning colors? For insects, it depends
The effectiveness of camouflage or warning colors for insect defense depends on conditions such as light levels and how many predators are around.
- Psychology
Striking moments make previous memories stronger
Emotional events help solidify memories. The findings may one day help students study or trauma survivors recover.
- Microbes
Staph bacteria are bad at letting go
Calcium, a mineral involved in wound healing, can strengthen the attachment between microbe and skin and make infections hard to shake.
- Animals
This ‘ghost shark’ has teeth on its forehead
Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.
- Neuroscience
Lung cancer plugs into the mouse brain
Exploring the relationship between cancer cells and nerve cells, which can signal tumors to grow, could unearth ways to slow disease.
- Paleontology
An ancient reptile’s fossilized skin reveals how it swam like a seal
A reptile fossil is the first of its kind with skin and partially webbed feet, possibly showing how later species like plesiosaurs adapted to water.
- Animals
Bats live with some viruses. But others can do them in
Bats can carry some deadly human pathogens without signs of illness. A new survey shows that other viruses can still be bad for bats.
- Animals
Tug or fetch? Some dogs sort toys by how they are used
Dogs that easily learn the names of toys might also mentally sort them by function, a new example of complex cognitive activity in the canine brain.
