Life
We summarize the week's scientific breakthroughs every Thursday.
- Science & Society
Humans exploit about one-third of wild vertebrate species
An analysis of nearly 47,000 vertebrate animal species reveals that using them for food, medicine or the pet trade is helping push some toward extinction.
- Climate
The snow forest of North America may be about to shrink
From 2000 to 2019, the boreal forest’s northern boundary didn’t move while southern tree cover thinned due to climate change, wildfires and logging.
- Life
Young squash bugs seek out adults’ poop for an essential microbe
Squash bug nymphs don’t rely on their parents to pick up a bacterium they’d die without. They find it on their own.
- Life
Flowers pollinated by honeybees make lower-quality seeds
Honeybees are one of the most common pollinators. But their flower-visiting habits make it harder for some plants to produce good seeds.
- Paleontology
Megalodon sharks may have become megapredators by running hot
O. megalodon sharks were warm-blooded megapredators. But colder-blooded great white sharks may have had an evolutionary edge when food sources dwindled.
- Animals
A grisly trick helps snow flies survive freezing: self-amputation
When a snow fly’s leg begins to freeze, a quick amputation can prevent ice from spreading, keeping the cold-hardy insect alive.
- Animals
Bottlenose dolphin moms use baby talk with their calves
When their babies are near, bottlenose dolphin moms modify their signature whistles, similar to human parents speaking in baby talk.
- Life
1.6-billion-year-old steroid fossils hint at a lost world of microbial life
Molecular fossils suggest the existence of a lost world of primitive eukaryotes that dominated aquatic ecosystems from at least 1.6 billion to 0.8 billion years ago.
- Genetics
The first gene therapy for muscular dystrophy has been approved for some kids
The U.S. Food and Drug Administration cleared a shortened version of a gene for a muscle protein to be used in 4- and 5-year-olds with muscular dystrophy.
- Paleontology
Paleontology has a ‘parachute science’ problem. Here’s how it plays out in 3 nations
When researchers study fossils from lower-income countries, they often engage in dubious or illegal practices that can stifle science.
- Genetics
Daphne Martschenko is a champion for ethical, inclusive genomics research
A bioethicist focused on the genomics revolution, Daphne Martschenko fosters open discussion through “adversarial collaboration”
- Animals
DNA has revealed the origin of this giant ‘mystery’ gecko
A genetic analysis of a 19th century museum specimen, the only known example of the planet’s biggest gecko, has rewritten the animal’s backstory.
