Life
We summarize the week's scientific breakthroughs every Thursday.
- Animals
Snakes evolved from burrowing ancestor, new data suggest
A new X-ray analysis of inner ears is the latest to weigh in on whether modern snakes descended from a burrowing or a swimming reptile.
- Animals
For a python, every meal is like Thanksgiving
Burmese pythons rarely eat, but when they do, they gorge. Unlike humans, pythons have adaptations that allow them to survive on huge meals.
- Genetics
Water bears are genetic mash-ups
Drying out may help tardigrades soak up new DNA, which in turn aids the water bears in withstanding stress.
- Life
DNA doubled in conifer ancestors
The genomes of conifers — pine, cypress and yew trees — doubled twice in the distant past.
- Neuroscience
Taste is all in your head
By targeting certain nerve cells in a mouse’s brain, scientists made plain water turn bitter or sweet.
- Microbes
Gut microbes signal when dinner is done
Helpful E. coli bacteria that live in the guts of animals produce proteins that can decrease an animal’s appetite only 20 minutes after receiving nutrients
- Plants
Conifer ancestors had a double dose of DNA
The genomes of conifers — pine, cypress and yew trees — doubled twice in the distant past.
- Genetics
Mosquitoes engineered to zap ability to carry malaria
Researchers have created a gene drive that prevents mosquitoes from carrying malaria.
- Animals
Five species that show why ‘bird brain’ is a stupid phrase
Birds can use tools, make art and understand human language. Why do we assume they are stupid?
- Plants
Roses rigged with electrical circuitry
Bioelectric molecules can form wires and conduct electricity in cut roses, researchers find.
- Life
Many Amazon trees endangered
Large numbers of Amazon tree species are threatened by deforestation.
- Science & Society
Genetically modified salmon gets approval in U.S.
Fast-growing salmon become first genetically engineered animals approved for human consumption.
