Life
We summarize the week's scientific breakthroughs every Thursday.
- Life
Infants may laugh like some apes in their first months of life
Laughter seems to change over life’s early months, perhaps influenced by the unconscious feedback parents give when they play with their little ones.
- Animals
How metal-infused jaws give some ants an exceptionally sharp bite
Some small animals make cuts, tears and punctures that they couldn’t otherwise do using body parts reinforced with metals such as zinc and manganese.
- Animals
Some wasps’ nests glow green under ultraviolet light
Some Asian paper wasps’ nests fluoresce so brilliantly that the glow is visible from up to 20 meters away.
- Life
Fires may have affected up to 85 percent of threatened Amazon species
Since 2001, fires in the Amazon have impacted up to about 190,000 square kilometers — roughly the size of Washington state.
- Animals
Streetlights, especially super bright LEDs, may harm insect populations
Greenery under streetlights housed half as many caterpillars as darker areas did, researchers found.
- Life
An incredibly resilient coral in the Great Barrier Reef offers hope for the future
At more than 400 years old, a massive coral off the coast of Australia has endured as many as 80 cyclones and 99 bleaching events.
- Animals
Female hummingbirds may sport flashy feathers to avoid being harassed
Some female white-necked jacobin hummingbirds boast bright blue plumage that’s similar to males. The colors may help females blend in to avoid attacks.
- Paleontology
This big-headed pterosaur may have preferred walking over flying
The most intact fossil of a tapejarid pterosaur ever found yields new insight into how the ancient reptile lived.
- Anthropology
Ancient DNA shows the peopling of Southeast Asian islands was surprisingly complex
Ancient DNA from a hunter-gatherer skeleton points to earlier-than-expected human arrivals on Southeast Asian islands known as Wallacea.
- Science & Society
Racism lurks in names given to plants and animals. That’s starting to change
Racist legacies linger in everyday lingo for birds, bugs and more. Some scientists see the chance to change that.
- Animals
Frog and toad pupils mainly come in seven different shapes
Analyzing over 3,200 species revealed that the colorful eyes of frogs and toads have pupils shaped as slits, diamonds, fans and more.
- Animals
A giant tortoise was caught stalking, killing and eating a baby bird
Video captures the first documented instance of a tortoise hunting another animal.
