New species of the plants are still being discovered, and their parasitic biology is being probed for potential cancer ...

Test your festive grammar skills with our Christmas challenge. Spot all 10 hidden mistakes and see if you're as sharp as you ...

Stocks are an investment in a company and that company's profits. Investors buy stock to earn a return on their investment. Many, or all, of the products featured on this page are from our advertising ...

Credit hours are the form of measurement most universities use to indicate how many credits a course is worth, based on the time you will likely spend on the class each week. When you enroll in a ...

Different types of cars have different types of suspensions. Most car owners have heard the term “strut,” but may not be clear as to what exactly the struts on a vehicle are or what they do. Most ...

The endocrine system is a network of glands that produces all the hormones used by the body. In addition to well-known sex hormones like testosterone and estrogen, it also secretes important hormones ...

These cosmic powerhouses are some of the most luminous and energetic objects in the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Hormones are the body’s chemical messengers. They act on various tissues and organs in the body to change their behavior. For example, the hormone prolactin stimulates the production of breastmilk.

If you go to a very dark site on a moonless night—and I cannot recommend it highly enough that you do so—you’ll be faced with an awesome sight: a night sky seemingly brimming with millions of stars, ...