The Naples Zoo has got itself a pair of cheetahs, its first in decades. But unlike most new arrivals at zoos, this pair is retired. She is 13 and from Amsterdam, he is 12 and from South Africa. The Naples Daily News, which is the sponsor of the new exhibit, says the two previously lived at Busch Gardens Tampa Bay, although they weren’t in the big public display. Their new home, which will open for public viewing on Saturday, is in the zoo’s northern gardens in a modified habitat with glass viewing walls. The cheetahs will sit atop small hills like ones seen on the African veldt.