Some 100 hippos descending from a herd smuggled into Colombia by the notorious drug kingpin Pablo Escobar are now recognized as “ interested persons ” following a federal-court decision this month that is believed to be the first such ruling of its kind in the United States. What you need to know about the U.N. climate summit — and why it matters ArrowRight The Animal Legal Defense Fund, which sought the interested persons designation for the “ cocaine hippos, ” called the ruling by a judge in t