Construction crews have reached the halfway point in building a new orangutan center at the Indianapolis Zoo.
The zoo says in a newsletter that construction is expected to be complete by December. The center is being funded by a $30 million capital campaign.
Construction started last September.
The exhibit will feature an aerial gondola ride for visitors to see the eight orangutans.
The zoo has emphasized the need to protect orangutans and educate the general public about the primates.
The World Wildlife Foundation says the two species of orangutan numbered 230,000 a century ago. The eight apes from the Southeast Asian islands of Borneo and Sumatra living at the zoo will be among about 50,000 remaining.