HS-LS1-2
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
- Animals
Ogre-faced spiders listen closely to snatch bugs from the air
Ogre-faced spiders can hear prey sneaking around behind them. Low frequencies can trigger a blind, backwards attack.
- Animals
Please do not touch the Australian stinging tree
Stinging-tree leaves look soft and inviting, but one touch delivers agony. Structurally, the plant's painful chemical looks a lot like spider venom.
- Animals
The diabolical ironclad beetle is nearly unsquishable
The diabolical ironclad beetle is an incredibly tough little creature. A peek inside its exoskeleton reveals what makes it virtually uncrushable.
- Health & Medicine
Teen athletes with even mild COVID-19 can develop heart problems
COVID-positive student athletes, some with no symptoms, have developed heart inflammation and more. They are new reasons to limit coronavirus exposure.
- Brain
Kids use more of the brain than adults do to process language
The brain continues to grow and mature throughout childhood. One big change occurs in which parts of the brain turn on as someone processes language.
- Animals
When physicians and veterinarians team up, all species benefit
When doctors for people and those for animals share their expertise, they can discover new ways to take better medical care of all species.
- Animals
Let’s learn about bones
Bones hold us up and help us fight gravity with every step. They also make blood cells, hormones and more.
- Animals
Whale blowholes don’t keep out seawater
Whales’ blowholes aren’t as protective as scientists had thought. They not only can let in water but also pollutants.
- Ecosystems
‘Vampire’ parasite challenges the definition of a plant
Langsdorffia are stripped down to their essentials. Lacking green leaves for photosynthesis, they steal energy and nutrients from other plants.
- Animals
A single chemical may draw lonely locusts into a hungry swarm
Swarms of locusts can destroy crops. Scientists have discovered a chemical that might make locusts come together in huge hungry swarms.
- Health & Medicine
Explainer: What is puberty?
Puberty isn’t just a time for zits, breasts and deeper voices. It also spurs brain development that helps teens handle emotions and deal with stress.
- Brain
You don’t see as much color as you think
It might seem like we live in a world full of color. But when scientists flip it into black and white, most people never notice the switch.
