STEPHEN FEE:

At this 200-acre expanse near Shreveport, in Western Louisiana, chimpanzees have the run of the place.

It's called "Chimp Haven," a sort of retirement community for chimpanzees, our closest genetic relative in the Animal Kingdom.

The National Institutes of Health decided last month to end its support for biomedical experiments on chimpanzees, and it will send them here to live out their days.

NIH Director Francis Collins says such medical testing is no longer necessary.