A rare female black jaguar cub, with a coloration seen in only 10 percent of wild jaguars, was born at The Big Cat Sanctuary in Kent, England. Keepers were “over the moon” at the new arrival of the feline on April 6, Briony Smith, curator at the sanctuary, said in a statement. “I cannot believe how quickly she is developing compared to other big cat cubs, and this seems to be normal for jaguars,” she added. The “gorgeous girl” was born with her eyes open at 11.10 a.m. and was walking well by 2 weeks of age. She was “tearing around the dens” shortly thereafter. The cub’s mother, Keira, was born at Paradise Wildlife Park in Hertfordshire in 2017. Keira and a black jaguar, Neron—from whom the cub gets her coloration—were paired in 2019, and were enlisted into the European Endangered Species Breeding Program in an effort to elevate jaguars out of “near …