In the 1960s, U.S. Fish and Wildlife Service researchers used hormone-laced bait to prevent New Mexico coyotes, the "little bad guys of the Western Plains," from reproducing so effectively. It worked pretty well: Up to 80 percent of treated females didn't get pregnant. But those females had to consume meds repeatedly throughout the breeding cycle, and there was risk of other animals eating the bait -- or even chowing down on the treated coyotes. Ever since, scientists have been trying to develop the perfect wildlife birth control, a humane management tool for creatures that proliferate in human-manipulated environments.
- Jody Karr on How can we protect our National Parks? Here’s an idea.
- Scott Veirs on A tax on carbon pollution faces surprising opposition
- Jim Bolen on A tax on carbon pollution faces surprising opposition
- David W Hamilton on Comb Ridge parcel sold to highest bidder
- Michael Bryant on Comb Ridge parcel sold to highest bidder