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The Los Angeles Zoo has received a real treat for Halloween. Their first baby hippopotamus in 26 years was born.
The zoo says the baby was born Friday, Oct. 31. It was somewhat of a surprise, but staffers had noticed the mother hippo gained weight, which made them suspect she was pregnant.
Vets haven't determined the gender 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. The father is 3-year-old named Adhama, who arrived from the San Diego Zoo last year.
Critical thinking challenge: Why was the birth considered a treat?