Animals
Farting fish and tooting manatees — how some animals use gas
Humans think farts are funny — but some animals rely on farts for flotation, communication and more.
MS-LS1-7
Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.
More Stories in MS-LS1-7
- Health & Medicine
Here’s what nutrition experts say about dietary fat
New U.S. dietary guidelines promote eating full-fat dairy and meats. But health experts say nuts and seed oils are better sources of the two crucial fats we need.
- Health & Medicine
Meet CLA, a naturally ‘healthy’ fat in burgers, ice cream and more
Solid at room temp, the natural trans fat conjugated linoleic acid resembles saturated fats — except that it appears good for the body in many ways.
- Health & Medicine
Explainer: What are ultraprocessed foods?
Packed with chemical additives, these foods have become a major part of our diets. Scientists have begun to worry about how ultraprocessed foods may impact health.
- Health & Medicine
You need to eat protein — but the right mix really matters
All proteins are not equal, research is showing. So while most Americans get plenty of protein, they might not be eating the most nutritious blend.
- Health & Medicine
What are vitamins?
Humans need 13 different vitamins to stay healthy. Most come from the food we eat. Others are made in our bodies.
- Chemistry
Scientists Say: Vitamin
Our bodies can’t make enough of these tiny but mighty worker molecules. That’s what makes them a dietary essential.
- Animals
Putting vampire bats on treadmills revealed an energy-burning quirk
A mini gym for bats shows that vampire bats burn amino acids, rather than the carbs or fats other mammals rely on during exercise.
- Animals
How to make ‘worms’ more nutritious — and easier to swallow
Extracting protein from insect larvae could lead to a healthful food ingredient — and you never have to bite into crunchy legs or squishy bodies.
- Health & Medicine
Want to avoid getting sick? Adopt these immune-boosting behaviors
Research points to ways we can work to stay healthy, even in the face of germs.
