Bo takes his bow as latest White House pet

The Obama family welcomes their new puppy, Bo, a Portuguese water dog, to the White House. The puppy was given as a gift by the veteran senator Ted Kennedy Photograph: Pete Souza - The White House/Washington Post website

1933: President Franklin D Roosevelt and the first lady, Eleanor, relax on the lawn of their estate in Hyde Park with their pet dog, Meggie Photograph: AP

1932: President Herbert Hoover with the first lady, Lou Henry, and their dogs in Washington Photograph: AP

1964: President Lyndon B Johnson holds his dog Her by the ears on the White House lawn. On the left is Johnson's other dog, Him. This picture raised criticism from dog lovers Photograph: Charles P Gorry/AP

1970: President Richard Nixon pets his dogs, (left-right) Irish setter King Timahoe, Yorkshire terrier Pasha and French poodle Vicky, outside the White House Photograph: Pictorial Parade/Getty

1974: President Gerald Ford and his daughter, Susan, sit on the White House lawn watching Liberty, a golden retriever, which was given to him by Susan Photograph: John Duricka/AP

1985: President Ronald Reagan and the first lady, Nancy, walk towards the White House with their dog, Lucky Photograph: Ron Edmonds/AP

1988: Vice-president George Bush and his wife, Barbara, holding the family dog Photograph: J Scott Applewhite/AP

1998: President Bill Clinton gives his dog Buddy a kiss in the Rose Garden of the White House Photograph: Paul J Richards/AFP

1996: President Bill Clinton's cat Socks with the presidential secretary Betty Currie Photograph: Barbara Kinney/The White House/Reuters

2000: George W Bush teases his cat Ernie at the Governor's Mansion in Austin, Texas Photograph: Brooks Kraft/Sygma/Corbis

2006: President Bush and the first lady, Laura, with their pet dogs Barney and Miss Beazley Photograph: Manuel Balce Ceneta/AP

The Obama family's new puppy, a six-month-old Portuguese water dog named Bo Photograph: Pete Souza /The White House