Life
We summarize the week's scientific breakthroughs every Thursday.
- Math
Scientists find a naturally occurring molecule that forms a fractal
The protein assembles itself into a repeating triangle pattern. The fractal seems to be an accident of evolution, scientists say.
- Animals
In a first, these crab spiders appear to collaborate, creating camouflage
Scientists found a pair of mating crab spiders blending in with a flower. The report may be the first known case of cooperative camouflage in spiders.
- Life
This marine alga is the first known eukaryote to pull nitrogen from air
An alga’s bacterial symbiote has evolved into an organelle that turns atmospheric nitrogen into ammonia, making the alga unique among eukaryotes.
- Ecosystems
Flowers may be big antennas for bees’ electrical signals
The finding suggests a way for plants to share information about nearby pollinators and communicate when to trigger nectar production.
- Animals
Eavesdropping on fish could help us keep better tabs on underwater worlds
Scientists are on a quest to log all the sounds of fish communication. The result could lead to better monitoring of ecosystems and fish behavior.
- Life
During a total solar eclipse, some colors really pop. Here’s why
As a solar eclipse approaches totality and our eyes adjust to dimming light, our color vision changes. It’s called the Purkinje effect.
- Genetics
Here’s why some pigeons do backflips
Meet the scientist homing in on the genes involved in making parlor roller pigeons do backward somersaults.
- Neuroscience
Chickadees use memory ‘bar codes’ to find their hidden food stashes
Unique subsets of neurons in a chickadee’s memory center light up for each distinct cache, hinting at how episodic memories are encoded in the brain.
- Neuroscience
Here’s how magnetic fields shape desert ants’ brains
Exposure to a tweaked magnetic field scrambled desert ants’ efforts to learn where home is — and affected neuron connections in a key part of the brain.
- Paleontology
An extinct sofa-sized turtle may have lived alongside humans
Peltocephalus maturin was one of the biggest turtles ever, but unlike similarly sized prehistoric freshwater turtles, it lived thousands of years ago.
- Animals
By fluttering its wings, this bird uses body language to tell its mate ‘after you’
New observations suggest that Japanese tits gesture to communicate complex messages — a rare ability in the animal kingdom and a first seen in birds.
- Neuroscience
Dogs know words for their favorite toys
The brain activity of dogs that were expecting one toy but were shown another suggests canines create mental concepts of everyday objects.
