Two hippopotamuses at the Hacienda Nápoles theme park, in Doradal, Colombia, April 25, 2026. Colombia plans to cull a population of wild hippos, the offspring of the drug lord Pablo Escobar’s pets, dividing a town where the semiaquatic mammals are the main draw. (Esteban Vanegas/The New York Times) By LUIS FERRÉ-SADURNÍ When night falls in the small Colombian village of Doradal, the quiet is broken by the wet, heavy thuds of the town’s 3,000-pound unofficial mascots trudging past gardens,…