HS-LS1-2
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
- Animals
Wild medicine! An orangutan treated his wound with a local plant
This great ape, living in Indonesia, doctored the gash on his face with a plant that people living in the area use as a natural medicine.
- Animals
Tiny treadmills reveal how fruit flies sprint
Forcing fruit flies to move shows how the insects coordinate their steps. This holds clues to other animals’ brains and movement.
- Animals
Scientists Say: Endotherm and Ectotherm
Endotherms use their own energy to maintain their internal temperature. Ectotherms use external heat sources to control their body temperature.
- Health & Medicine
Cough! What happens when something goes down the wrong way
Certain cells can sense water and acid on the way to the lungs, prompting reactions such as coughing and swallowing, research in mice shows.
- Animals
Belugas can warp and wiggle their forehead fat like Jell-O
Molding and moving this ‘melon’ may help the whales communicate.
- Health & Medicine
Scientists Say: Menstruation
Menstruation is part of a roughly monthly cycle that helps a person’s body prepare for possible pregnancy.
- Animals
Phoenixes aren’t the only creatures to survive the flames
Although a phoenix that burns and lives is a myth, many living things on Earth don’t mind hot temperatures.
- Health & Medicine
How to help transgender and nonbinary teens bloom during puberty
Gender-affirming medical care during puberty can help transgender and nonbinary teens end up with an adult body that matches their gender.
- Animals
Scientists Say: Compound Eye
Compound eyes made up of many smaller visual structures may not produce crisp images, but they offer a great field of view.
- Tech
Bioelectronics research wins top award at 2024 Regeneron ISEF
Three grand-award winners each took home at least $50,000. Hundreds more teens shared more than $9 million in prizes at the international competition.
- Physics
The movie Frozen inspired the icy, 3-D printing of blood vessels
Ice guides a 3-D printing method to make realistic, artificial blood vessels. One day, such vessels could be used in lab-grown organs.
- Chemistry
Here’s why teens’ body odor can be especially strong
The body odors of teens and younger kids share dozens of chemicals in common. But teens have some that infants and toddlers appear to lack.
