The Denver Zoo’s African penguin flock is just a little fluffier this week after a recently born chick was released from the intensive care unit, zoo officials said. The chick was born Oct. 15 to breeding pair Guja and Keni but had a serious respiratory disease that required around-the-clock care, according to a statement from the Denver Zoo Conservation Alliance. For the first two months of its life, the still-unnamed chick was hand-reared by animal care and animal health experts in the zoo’s Helen and Arthur E.