The Los Angeles Zoo is celebrating its first birth of a hippopotamus in 26 years. It was a bit of surprise, too, because the mother was on birth control. Vets haven't determined the sex of the new hippo, but they say the baby appears to be doing well and is bonding with mom. The mother, 10-year-old Mara, came to the zoo in December from Topeka, Kansas. Dad is 3-year-old Adhama, who arrived from the San Diego Zoo last year. (More hippopotamus stories.)