From an article in The Albuquerque Tribune about the $7 million expansion at the Rio Grande Zoo:
While the new chimpanzee area will be closed off from the public, visitors can peer in through large windows.
“We have to keep the chimps isolated from the public. They tend to throw things,” Morin said.
But the chimps will have one of the more interactive exhibits in their post-renovation digs. Visitors can test their strength against the chimps by pulling on a rope that will go through a hole into the exhibit wall.
“There could be three or four of us on the rope and we still probably couldn’t pull a chimp over,” Morin said.