<b>Provided to the Tribune</b>Pluto looks serious because he is politely staring at a tennis ball. In fact, he's full of fun, goofy and true to the character of his Labrador Retriever breed. In addition to balls, Pluto likes cats, dogs, people, swimming, hiking and any kind of fetch. Pluto is high energy and needs a partner to match. For adoption, call El Dorado County Animal Services at 530-573-7925. For spay-neuter assistance and other support, call the Lake Tahoe Humane Society and S.P.C.A. at 530-542-2857.