Berlin Zoo Says its Young Polar Bear's Parents Are Siblings, Clerical Error Led to Breeding Match
Photo: Jens Kalaene/picture alliance via Getty Images Genetic testing has revealed that Hertha, a popular polar bear at Tierpark Berlin Zoo, is the product of an accidental breeding between siblings, according to the German zoo. On Tuesday, the Berlin Zoo released a statement claiming that a clerical error at the Moscow Zoo left a female polar bear named Tonja listed as the daughter of the wrong parents. Tonja went on to mate with Berlin’s male polar bear Wolodja,according to CNN....