A deck brush can be a good tool for the right task. Just ask Veronika, a Brown Swiss cow. She uses both ends of a deck brush to scratch various body parts. This makes her the first cow reported to use a tool.

Researchers shared Veronika’s cle...

American dietary guidelines have gotten an overhaul. In January, the U.S. federal government unveiled a new food pyramid. Unlike the classic food pyramid, the new one is an upside-down triangle. Meat, full-fat dairy and olive oil appear near its top — suggesting people should eat a lot of those things. Grains and fruits are near the bottom, suggesting people should eat little...

Many meat and dairy products from cows and sheep contain an unusual type of fat. Due to the chemical bonds between their carbon atoms, these fats resemb...

Can you name every ingredient in a Twinkie? It’s not easy: The list has more than 35. You might recognize the eggs, sugar and flour. But after that, it gets hard.

It would take a mighty effort to guess it has hydrogenated tallow. Or sodium stearoyl lactylate. Or the food dye red 40. These chemicals, and many more, are now common ingredients in most U.S. diets. That’...

Harmful algal blooms plague waterways worldwide. Many are due to overgrowth of toxin-producing cyanobacteria. Their toxins can sicken both people and animals. But chemicals currently used to fight algal blooms, such as copper sulfate,