A close-up of a rhinoceros at the Fort Worth Zoo, Texas.
A donkey shows his teeth at Arbuckle Wilderness Park near Davis, Oklahoma.
One of our dogs, Millie, investigates a sound in a tree.
A bald eagle perches on a branch in a forest near Juneau, Alaska.
A blue-and-gold macaw at the Fort Worth Zoo shows off his talons.
A mother gorilla and her young son at the Fort Worth Zoo, Texas.
Dogs play on the beach at Crissy Field, San Francisco.