Life
We summarize the week's scientific breakthroughs every Thursday.
- Animals
Just like humans, many animals get more aggressive in the heat
From salamanders to monkeys, many species get more violent at warmer temperatures — a trend that may shape their social structures as the world warms.
- Paleontology
Young pterosaurs probably died in violent Jurassic storms
Two hatchling pterosaurs with fractured arm bones point to ancient storms as the cause of mass casualties preserved in Germany’s Solnhofen Limestone.
- Animals
Tiny thumbnails may be key for rodents’ global takeover
Thumbnails might have boosted rodents’ food-handling skills, helping them thrive worldwide.
- Life
A sixth mass extinction? Not so fast, some scientists say
A new analysis suggests that recent extinctions have been rare, limited mostly to islands and slowing. But others argue this is all just semantics.
- Animals
Here’s how fruit flies’ giant sperm squeeze into tight spaces
Researchers found that fruit fly sperm push against one another and align in orderly bundles, preventing knots that could block reproduction.
- Microbes
Antarctic lake microbes have flexible survival strategies
Life teems under the Antarctic ice sheet. In subglacial Lake Mercer, it is surprisingly versatile and isolated from the rest of the world.
- Animals
This lizard can tolerate extreme levels of lead
Cuban brown anoles have the highest blood lead levels of any vertebrate known — three times that of the previous record holder, the Nile crocodile.
- Life
Horses may have become rideable with the help of a genetic mutation
To make horses rideable during domestication, people may have inadvertently targeted a mutation in horses to strengthen their backs and their balance.
- Microbes
What makes chocolate taste so good? It’s the microbes
Beans matter, but microbes may be the real secret to fine chocolate flavor. Scientists are building starter cultures that may improve quality.
- Animals
The mysterious, extinct ‘Fuegian dog’ was actually a semi-tame fox
Historic European accounts long described the canids as domesticated dogs. A new study suggests that’s probably not true.
- Animals
The phoenix isn’t the only critter to survive the flames
There are no real phoenixes hiding anywhere. But science has revealed that some living things can take quite a bit of heat.
- Animals
Around the world, birds sing longer in light-polluted areas
In light-polluted landscapes, birds' singing time is an average of 50 minutes longer per day. It's still unclear if this hurts bird health or helps.
