Grasses provide most of the world's calories—but we're only now starting to learn how they grow

If we want to dismiss something as irrelevant, we'd say that it's "as boring as watching the grass grow. " And yet grasses—including corn, wheat and rice—make up most of the plant-based calories humans eat, as well as most of the calories fed to livestock. Perhaps we should have been paying atte...

Source: [Phys.org](https://phys.org/news/2026-07-grasses-world-calories.html)