The dog butt sniff is the canine equivalent of âhello, how do you do?â and similar to how humans use a handshake when meeting and being introduced to someone. Dogs communicate with each other using their strong sense of smell and detect signals in the chemicals in smelly oil from the anal glands. Dogs have prominent and active anal glands. 2  These apocrine glands, which sit on each side of a dog's rectum, produce strong-smelling secretions intended to send chemical signals about that dog's identity to other animals.
Valerie Jarrett Enters Politics Valerie Jarrett entered Chicago politics in 1987 as Deputy Corporation Counsel for Finance and Development in the administration of Harold Washington, the city's first African-American mayor.
Jarrett is deeply concerned with racial issues. After the tape recordings of Jeremiah Wright's racist, anti-American diatribes threatened to sink Obamaâs 2008 presidential campaign, it was Jarrett who encouraged Obama to give his ârace speechâ at Constitution Hall.