dogs

Due to fears of Ebola, Excalibur, the pet of a nurse assistant infected with the virus in Madrid, was euthanized as a precautionary measure. AP hide caption

Excalibur, the dog that belonged to the Spanish nurse infected with Ebola, bayed from its balcony in Madrid before being euthanized on Oct. 8. Andres Kudacki/AP hide caption

Boys show off their four-legged friends at a rabies vaccination drive set up by the Serengeti Health Initiative in the Bariadi District of Tanzania. Anna Czupryna/Courtesy of Serengeti Health Initiative hide caption

Not everyone's a dog lover. A new magazine in Germany caters to the haters. Aaron Kohr/iStockphoto hide caption

Zeus drinks from the kitchen faucet in Otsego, Mich. The Great Dane, the world's tallest dog, died last week. He was 5. Kevin Scott Ramos/Guinness World Records 2013 Book/AP hide caption

Oh, I don't wanna share you with nothing else, I gotta have you to myself. iStockphoto hide caption

Dogs throughout Latin America carry the Chagas parasite — and boost the risk of people catching it. And it's not just shelter dogs, like these in Mexico, who are at risk. Even family dogs get the deadly disease. Jose Luis Gonzalez/Reuters/Landov hide caption

In June, the 167th Patrol Dog Class graduated from their canine narcotics and electronic media detection training, held by the Connecticut State Police Canine Unit. At far left is Thoreau, who now helps police in Rhode Island find computer hard drives. Daniel Owen/Courtesy of The Hartford Courant hide caption

One of several free-roaming dogs who live on the beach at Punta Santiago in Puerto Rico who have formed a loose association with a group of homeless men also living on the beach. Courtesy of Adriana Pisano Beaumont hide caption

All in the name of science: A dog gets his brain scanned as he listens to human and canine sounds, such as barks, growls, giggles and laughs Courtesy of Eniko Kubinyi hide caption

The face of true love? iStockphoto hide caption

Sky, a wire fox terrier, is shown here competing in the terrier group before winning best in show at the Westminster Kennel Club dog show Tuesday. Frank Franklin II/AP hide caption