MS-LS1-3
Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
- Animals
Narwhals may use their enormous lance-like tusks to play
Video shows narwhals using their tusks to prod — even flip — fish they don’t target as prey. It’s the first reported evidence of these whales playing.
- Brain
Scientists Say: Neuroplasticity
Neurons in the brain forge new connections and sometimes trim back old ones. This capacity for change allows us to learn new skills and recover from injury.
- Animals
Scientists Say: Caecilian
Some of these amphibians can produce a milk-like liquid for their offspring and give birth to live young. And those aren't the only rules these rebels break.
- Health & Medicine
Can you really die of a broken heart?
Death by heartbreak doesn't just happen in stories. In real life, severe stress can cause takotsubo syndrome — a sometimes fatal heart problem.
- Animals
A surprising number of animals eat poop
A new tally finds more than 150 vertebrate species willing to snack on feces. Eating poop offers nutrients and other benefits.
- Animals
Let’s learn about octopuses
These clever, color-changing cephalopods live all over the world.
- Health & Medicine
Science works to demystify hair and help it behave
Research explores new ways to classify hair — from loose curls to tight coils — along with ways to control it and improve its looks and health.
- Animals
In 2024, bird flu posed big risks — and to far more than birds
Cows, elephant seals and polar bears are among unexpected bird flu casualties. Learn about potential risks to them, to people and to our food supplies.
- Animals
Can furry pets get H5N1 bird flu and spread it to us?
The 2024 pandemic-style bird flu circulating in birds has shown up in cats and other pet species.
- Health & Medicine
Explainer: Anatomy of a heartbeat
Here’s how the heart pumps blood to each and every cell of the body. It beats roughly 60 times every minute, starting before we’re born.
- Brain
Zap, zap, zap! Our bodies are electric
Electricity powers key functions in the brain, heart and bone. Scientists are working to understand those currents to improve our health and moods.
- Health & Medicine
Use of injectable GLP-1 weight-loss drugs skyrockets among teens
Their long-term safety is still an issue for kids. Meanwhile, a new vibrating robotic pill in early trials might offer an edible alternative to GLP-1s.
