Photos: Famous presidential pets
Presidential pets
Credit: http://www.presidentialpetmuseum.com
To cut groundskeeping costs during World War I, President Woodrow Wilson (1913-21) brought a flock of sheep to trim the White House grounds. Included in the flock was Old Ike, a tobacco-chewing ram.
Other Slideshows
Photos: Cars dumped into water when bridge collapses
New photos from ground zero of Moore tornado
Frank Davis in the fight of his life
Photos: Forbes' list of most powerful women 
Photos: Crowds rock out on beach at Hangout Fest
Oklahoma tornado leaves dozens dead, including many children
