A surprise baby at the national sanctuary for research chimps in Louisiana has a lifetime sponsor and a name.

Chimp Haven spokeswoman Karen Allen says a southern California woman, Anita Hirsh, pledged $13,000 a year to "adopt" the baby, now named for Hirsh's late mother, Natalie.

The federal government covers three-quarters of the cost for animals used in federal research, but not for babies or chimps that were privately owned before coming to the sanctuary near Keithville in northwest Louisiana.