Pop quiz: What’s the best way to help butterflies in your backyard? If you answered “Plant butterfly bush,” you’re in good company. A recent survey of my gardening friends elicited the same response from more than a few. It’s easy to understand why: Aside from its self-reinforcing moniker, the plant...

What is immunocontraception? Immunocontraception is a birth control method that uses the body's immune response to prevent pregnancy. Why is the Humane Society of the United States sponsoring research in immunocontraception? The Humane Society of the United States (HSUS) believes that...