Archaeoindris
Though similar to "Palaeopropithecus", "Archaeoindris" was significantly larger and more robust. "Archaeoindris" was one of the largest primates to ever evolve, and was the largest-known strepsirrhine primate, weighing an estimated . It was roughly the size of an adult male gorilla, which was first noted by Lamberton.
Oregon Zoo
Currently anchored by the Zoo's 1959 primate building, the primate forest is undergoing substantial renovation that includes demolition of most of the old primate building. The current primate exhibit features chimpanzees (Pan troglodytes). Following renovation, the primate exhibit will include Red Ape Reserve, a 2010 indoor/outdoor exhibit housing orangutans and white cheeked gibbons, and a new, larger chimpanzee habitat that will replace the primate building.The Oregon Zoo participates in Species Survival Plans for 63 endangered/threatened species, among which are successful breeding programs for endangered Asian elephants, and in recent times, African lions. (The latter was under recommendation by the AZA).