Ecosystems: Interactions, Energy, and Dynamics
- Animals
Dancing spiders inspired this biologist to teach others
Inspired by his research in animal communication, Echeverri began exploring ways to teach others about science while finishing his Ph.D. Today, he shares his passion for spiders as a science communicator.
- Chemistry
Air pollution can make it harder for pollinators to find flowers
Pollutants that build up in night air can break down the scents that attract pollinating hawkmoths to primrose blooms, disrupting their pollination.
- Animals
Among mammals, males aren’t usually bigger than females
In a study of more than 400 mammal species, less than half have males that are heavier than females.
- Health & Medicine
A new type of immune cell may cause lifelong allergies
These special memory cells were present in people with allergies and absent in those without.
- Plants
On hot summer days, this thistle stays cool to the touch
Its yellow flowers can cool themselves substantially, staying up to 10 degrees C (18 degrees F) cooler in extreme heat.
- Earth
Experiment: Can plants stop soil erosion?
Soil erosion washes pollutants into streams and rivers — but plants may help limit that.
- Animals
Tardigrades survive harsh conditions by almost dying. Here’s how
Under stress, a chemical change signals these water bears to switch between live and mostly dead.
- Plants
Rampaging vines are slowly strangling tropical forests
Called lianas,these vines are growing out of control. They may cause tropical forests to absorb less carbon dioxide — worsening climate change.
- Plants
This urban gardener is mimicking nature to create healthier plants
Urban garden specialist Kwesi Joseph is experimenting with rock dust and plants. He also helps New York City community and school gardens with gardening problems.
- Animals
Analyze This: Marsupial gliders may avoid the ground to dodge predators
It has been unclear why gliding evolved in marsupials. To search for clues, researchers strapped activity trackers to some of these cryptic creatures.
- Animals
This frog is the world’s smallest known vertebrate
Neither fleas nor toads, Brazilian flea toads are almost flea-sized. These mini frogs are small enough to fit on a pinkie fingernail.
- Health & Medicine
9 things to know about lead’s health risks — and how to curb them
Lead has been linked to lower IQ, behavior problems, mental-health disorders, strokes and more health impacts. There are ways to reduce your exposure.
