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.
Humans need 13 different vitamins to stay healthy. Most come from the food we eat. Others are made in our bodies.
Our bodies can’t make enough of these tiny but mighty worker molecules. That’s what makes them a dietary essential.
The total amount of carbon on Earth doesn’t change. But what form those carbon atoms take is constantly changing.
A hulking marine cyanobacterium, Chonkus has traits that appears to make it especially good for storing away carbon on the ocean floor.
A mini gym for bats shows that vampire bats burn amino acids, rather than the carbs or fats other mammals rely on during exercise.
Thank photosynthesis for the existence of all complex life on Earth — including us.
Some can aid the climate by removing pollutants. Others would just avoid dirtying the environment in the first place.
Earth’s ongoing fever threatens to push entire forests toward this heat limit — and possible death.
