HS-LS1-2
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
- Humans
Analyze This: Spooky feelings may come from noises too low to hear
People exposed to low infrasound frequencies had higher levels of a stress hormone in spit and were more likely to rate music as sad.
- Animals
Some sea stars channel light like fiber-optic cables
The tiny cone-shaped structures in arms of chocolate-chip sea stars also triple their skeleton’s strength.
- Animals
The Cyclops may be an ancient myth, but one-eyed creatures are real
The iconic Cyclops of The Odyssey might look like a massive, one-eyed person, but it might have more in common with creatures other than humans.
- Math
AI can be a helpful math tutor if used right — and harmful if not
Using AI to learn math concepts can boost understanding. But if used to get quick answers, AI can become a crutch that hurts learning.
- Animals
Surprise! Wax seems key in turning honeybee larvae into queens
Worker bees build some ‘cribs’ with a special wax. It seems to turn larvae into royals — and challenges the idea that royal jelly was all it took.
- Life
Scientists Say: Phenology
This field of science identifies the environmental cues behind life cycle patterns.
- Humans
Explainer: What is ADHD?
Short for attention deficit/hyperactivity disorder, ADHD affects how people think, learn and process information.
- Animals
Scientists Say: Amphisbaenian
Little is known about these elusive soil-dwellers that resemble both worms and snakes.
- Animals
Songs prep unhatched finches’ brains for a hot world
Adult finches make “heat calls” to their eggs when temps rise. Exposure to those songs trigger chicks' developing brains to change in ways that better handle heat.
- Plants
A geometric pattern lurks in Chinese money plant leaves
Tiny water-oozing pores appear to shape the leaves’ veins into a “Voronoi diagram.”
- Microbes
Fuzzy microbes may fuel cows’ methane burps
Production of this potent greenhouse gas is triggered by a newfound feature of these microbes — one with a funny name: hydrogenobody.
- Animals
Here’s how ‘singing’ mice belt out their tiny tunes
Balloon-like air sacs in the mice's throats create whistling songs. No other animal is known to make calls in this way.
