Although 24 hummingbird species have been recorded in the United States, the Ruby-throated is the only one that breeds east ...

New research published in Communications Biology has uncovered the earliest known use of the medicinal and psychoactive plant ...

According to the USDA, ingestion of the plant is “frequently fatal” for livestock. In fact, sheep can reportedly be poisoned by eating as little as three ounces of green leaves. Animals can die from ...

Where they live: Plants are found on every continent, even Antarctica, and every ocean. What they eat: Plants use sunlight for photosynthesis, which produces sugars that fuel them. Plants are an ...

Robots are machines that can automatically perform both simple and complex actions. They are often programmed by a computer, but there's no single definition of a robot. Robots include a wide ...

BRITAIN'S "most dangerous" plant, giant hogweed, is starting to appear as the weather warms. Often found on riverbanks where flowing water easily spreads its seeds downstream, giant hogweed ...

An icon of a desk calendar. An icon of a circle with a diagonal line across. An icon of a block arrow pointing to the right. An icon of a paper envelope. An icon of the Facebook "f" mark. An icon ...

How far it is from the sun: 886 million miles (1.4 billion kilometers), on average How big it is: 72,400 miles (116,500 km) across, or almost 10 times the size of Earth. How many moons it has: At ...