4 HIPPOS Escaped ESCOBAR's Ranch — Now They're REPLACING Megafauna EXTINCT for 10,000 Years

A handful of hippos left behind on a drug lord's abandoned estate were supposed to be a footnote. Instead they bred into Colombia's rivers — and scientists noticed something stranger than an invasion: these giants may be filling an ecological role left empty since the giant plant-eaters of the Ice Age vanished. Is that restoration or disaster? We follow the real research, the fierce debate, and what nature does when a vacuum ten thousand years old suddenly gets filled.