An aging northern white rhino, one of just five left in the world, appears to be responding to treatment of an unidentified infection.
The baby, born in a rare Caesarean section at San Diego Zoo, was treated for pneumonia with antibiotics.
Activists have protested what they called poor conditions for killer whales and their trainers at SeaWorld San Diego.
The most prolific giant panda in captivity outside of China has proved her mettle yet again with the delivery of her sixth live cub.