Some of the world’s rivers host fish capable of delivering powerful bites, venomous stings, or sudden ambush attacks. Species like piranhas, payara, and large catfish have evolved sharp teeth, ...

Cara Tabachnick is a news editor at CBSNews.com. Cara began her career on the crime beat at Newsday. She has written for Marie Claire, The Washington Post and The Wall Street Journal. She reports on ...

Work began back in April in Lake Erie in Ontario and is expected to continue into October. That's good news, because when left to multiply, sea lampreys can cause big problems and threaten the Great ...

The payara, often called the vampire fish, is a predatory freshwater species found in the rivers of South America. It is known for its long saber-like fangs that can exceed several inches and are used ...