Halloween has its roots in a pagan harvest festival, while different traditions were added throughout the years.
RNA keeps some of life's most important processes humming, from building your body's proteins to silencing genes.
Eating healthily isn't a bad thing, but taken to the extreme, it can turn into a disorder called orthorexia nervosa.
The Black Panther Party was a revolutionary socialist organization that demanded equal rights for Black people and Black communities.
Hurricanes and typhoons — or more broadly, tropical cyclones — begin as clusters of thunderstorms over tropical ocean waters, taking anywhere from several hours to days to become organized.
Glyphosate is the most commonly used herbicide chemical in the world, sprayed everywhere from farms to backyards.
The seasonal flu shot is a yearly vaccine administered to protect against the flu, or influenza. In the United States, flu shots are recommended for everyone ages 6 months and older.
Stingrays are an instantly recognizable fish. The graceful swimmers glide through the water by undulating the edges of their flat, pancake-like bodies.
Locusts are described by their two dramatically different behavior patterns: Either docile and solitary, or active and sociable, forming gigantic, ravenous swarms.
Freemasonry is often misunderstood as a cult or a religion, but it's actually the world's largest fraternal organization with a long and complex history.
Taxonomy is the science of naming, defining and classifying organisms into evolutionarily related groups. It gives biologists a common language.
The Congo River is a long, arcing river in West-Central Africa, featuring a rainforest and providing food and transport for 75 million people.
Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy.
These Y-shaped molecules can precisely target and neutralize viruses, bacteria and other foreign invaders.
Mummification, or the process of preserving the dead, was once a widespread practice among many ancient societies.
Scientists use herd immunity to describe the point at which a population is sufficiently immune to a disease to prevent its circulation.