This black bear was spotted atop a tree in Tampa, Fla., on May 17, 2013. The bear population has been on the rise, so state wildlife officials are calling for a bear hunting season.
Skip O'Rourke /MCT /Landov
Laurie McCannon, director of the Northeast Animal Shelter in Salem, Mass., with a dog named Trina. Three-quarters of the dogs adopted from the shelter in 2013 were from out of state.
Shannon Mullen for NPR
A puppy waits at an adoption event in Miami last year. The city is now considering a ban on the sale of puppies in retail pet stores. Cities and towns in several states have passed similar bans, aimed at cracking down on substandard, large-scale puppy breeders.
A bear cub that had to be rescued from a tree after getting its head stuck in a cookie jar is shown in a handout photo from the New Jersey Department of Environmental Protection.
A curious cuttlefish stares back at the camera from inside The Smithsonian's National Zoo Invertebrate Exhibit. The exhibit, home to dozens of small aquatic and terrestrial species without backbones, closed on Sunday.
Meghan Murphy/Smithsonian's National Zoo
Adult bison and calves cross a dirt road on Antelope Island, northwest of Salt Lake City. A team of scientists from Utah State University has developed a smartphone app to track animal-vehicle collisions.
Douglas C. Pizac/AP