Venezuelan President Nicolas Maduro on Wednesday called US Vice President Mike Pence a “poisonous viper” and vowed to defeat what he called Washington’s attempts to force him from power. Maduro’s lash-out at the US Vice President came in response to his call for Latin America to isolate Venezuela. Pence, who arrived in Ecuador on Wednesday as part of a tour of South America,... 

What Good Are Snakes? Snakes do plenty of good things, especially for farmers. Snakes eat mice, rats, gophers, and other small mammals that eat farm crops. Snakes also help scientists and doctors. Snake venom is used in research and in making medicines. One medicine made from venom helps treat certain types of heart attacks. Another is antivenin (an tee VEHN uhn), a drug used to treat snakebites. To...