Life
We summarize the week's scientific breakthroughs every Thursday.
- Life
Why kitchen sponges are the perfect home for bacteria
Sponges are remarkably diverse hot spots for bacteria, in part because of the mixed-housing environment that the tools offer their tenants.
- Microbes
A chain mail–like armor may shield C. difficile from some antibiotics
Examining the structures that protect Clostridioides difficile from medicines could help researchers find new ways to target and kill the bacteria.
- Paleontology
The Age of Dinosaurs may have ended in springtime
Fossilized fish bones suggest that the massive asteroid strike at the end of the Cretaceous Period occurred during the Northern Hemisphere’s spring.
- Genetics
Africa’s oldest human DNA helps unveil an ancient population shift
Long-distance mate seekers started staying closer to home about 20,000 years ago.
- Paleontology
Fossils show a crocodile ancestor dined on a young dinosaur
The 100-million-year-old fossil of a crocodile ancestor contains the first indisputable evidence that dinosaurs were on the menu.
- Animals
How lizards keep detachable tails from falling off
A hierarchical structure of micropillars and nanopores allows the tail to break away when necessary while preventing it from easily detaching.
- Genetics
Gene therapies for sickle cell disease come with hope and challenges
Pediatrician Erica Esrick discusses existing sickle cell treatments and an ongoing clinical trial.
- Animals
A diamondlike structure gives some starfish skeletons their strength
Electron microscope images of knobby starfish’s calcite skeletons reveal an unexpected architecture that compensates for the mineral’s brittleness.
- Paleontology
Fossils reveal what may be the oldest known case of the dino sniffles
A respiratory infection that spread to air sacs in the vertebrae of a 150-million-year-old sauropod likely led to now-fossilized bone lesions.
- Genetics
How the Human Genome Project revolutionized understanding of our DNA
Completion of the Human Genome Project was a huge milestone, but there’s more work to do to ensure equitable access to the information in our DNA.
- Genetics
How one scientist aims to boost Black people’s representation in genetic datasets
Through information sharing, geneticist Tshaka Cunningham wants to build trust and encourage more Black people to engage with the medical community.
- Paleontology
Fossils reveal that pterosaurs puked pellets
Fish scale–filled pellets found by two pterosaurs are the first fossil evidence the flying reptiles regurgitated undigestible food, like some modern birds.
