KC Zoo announces chimp pregnancy

An ultrasound test confirms that a chimpanzee at the Kansas City Zoo is pregnant.

The zoo announced Friday that the 40-year-old chimp, named Rachel, is an experienced mother of 18-year-old twins. The new baby is due in March.

The zoo said Rachel has been cooperative during medical checkups, ultrasounds and urine testing. The latest ultrasound can be viewed here.

A chimp born at the zoo in October died unexpectedly in November. The zoo has 12 chimpanzees.

This story was originally published January 30, 2015 at 7:37 PM with the headline "KC Zoo announces chimp pregnancy."