WARNING: This page contains graphic content. In the spring of 2020, an HSUS investigator noticed something unusual: Just as some annual in-person killing contests for coyotes, foxes, bobcats and other animals were being canceled because of COVID-19, groups devoted to online killing contests were...

You don’t forget the images: the olive ridley sea turtle, a plastic straw lodged in his nose. The Rubenesque sea lion, neck cinched tight by a thick plastic packing strap. The Cuvier’s beaked whale, stomach split open to reveal more than 80 pounds of plastic waste—snack bags, rope, rice sacks...

The woman on the phone was anxious but determined. She was calling City Wildlife, a rescue and rehabilitation center in Washington, D.C., because her dog had dug up a rabbit nest and killed three of the babies. There was one survivor. “I’m going to get some kitten formula and start feeding it...