The Zoo is divided into several areas: Australian Adventure; African Savanna; Northern Wilderness Trek, The Primate, Cat & Aquatics Building, Waterfowl Lake, The RainForest, Asian Highlands, and the newly added Susie's Bear Hollow.

Construction began on the Primate & Cat Building in 1975 (the Aquatics section would be added in 1985), later followed by the RainForest in 1992, Wolf Wilderness in 1997, Australian Adventure in 2000, and the Sarah Allison Steffee Center for Zoological Medicine in 2004.

At the Bronx Zoo, which is the headquarters for the Wildlife Conservation Society (WCS), Goss conducted clinical, epidemiological and pathological research in collaboration with eminent field zoologist George Schaller.

Goss and Schaller in the 1970s and more recently by Atlanta, Chicago (Lincoln Park & Brookfield), National, San Diego, and Saint Louis zoos.

[19][20] Kuenzer was credited with designing The Rainforest, a state-of-the art indoor naturalistic living exhibit dedicated to the display of tropical and subtropical species from multiple continents.

Upon entering, visitors arrive in the Welcome Plaza which features administrative buildings, an amphitheater, food court, and the Zoo's largest souvenir shop.

Aside from walking, Zoo patrons may opt to ride the "ZooTram" line which shuttles visitors between the Welcome Plaza (near African Elephant Crossing) and the Primate, Cat & Aquatics Building.

Upon entering the RainForest, visitors are immediately greeted by a cascading, 25-foot (7.6 m) waterfall and a rush of hot, humid air, as the entire complex is heated year-round to an ambient 80 °F (27 °C).

All around the waterfall is a lush, tropical garden of epiphyte and lithophyte plants, growing vertically, rooted to the different trees and rock wall; botanical species here include various types of bromeliads, aroids, and orchids.

The central "Tropical Rain Storm" exhibit is a life-like recreation of a rainforest "island", with a large tree in the center, surrounded almost entirely by a moat stocked with tinfoil barb and pangasius catfish.

Several times daily (seasonally-dependent), a simulated tropical thunderstorm occurs; darkened ambience, flashing "lightning" and rumbling thunder sound effects signal the several-minutes-long event's commencement.

The core animals of The Rainforest are the Bornean orangutans, of which the zoo has five: males Tiram and Zaki, and females Kera Wak, Kayla, and Merah.

[25] Animals contained in the RainForest include the binturong, red-rumped agouti, a large group of free-flying straw-coloured fruit bats and Rodrigues flying foxes, the giant anteater, a group of capybara, scarlet ibis, the prehensile-tailed Brazilian porcupine, white-faced whistling ducks, green aracari, Prevost's squirrel, leafcutter ants, ocelot, clouded leopard, Luzon bleeding-heart pigeons, roseate spoonbill, yellow-spotted river turtles, Asian small-clawed otter, François' langur, and fishing cats.

Additionally, visitors will encounter numerous smaller, "discovery"-type exhibits featuring tropical invertebrates, Australian rainbowfish, upside-down catfish, jewel cichlids, red-bellied piranha, small mammals, and many reptiles and amphibians.

The Learning Lab offers interactive, hands-on educational displays as well as views into surgical suites where visitors may observe treatment procedures in progress.

The exhibit houses animals such as Masai giraffes, Hartmann's mountain zebras, bonteboks, ostriches, white-backed vultures as well as several species of African storks and geese.

[31] The Wilderness Trek area is home to cold climate animals such as Siberian tigers, grizzly bears, Tufted deer, Reindeer, the near threatened American Bison, and Red-crowned cranes which remain active outdoors year-round.

Wolf Lodge, which anchors the exhibit, serves as an education and viewing center for gray wolves, beavers, and a variety of wetland species.

[36] Upon entering, visitors arrive in the welcome center, which offers information on the indigenous animals of North America's deciduous forests and wetlands; this room leads into the two main exhibit areas.

Although visitors can also view the wolves from this room, the principal exhibits are the Canadian beaver habitat, the 65,000-US-gallon (250,000 L; 54,000 imp gal) freshwater pond, and the Zoo's collection of bald eagles.

Opened June 3, 2016, this exhibit features "four separate, interconnected habitat areas for the [zoo's] Amur tigers to roam", and includes "two overhead elevated pathways".

Visitors can observe predatory birds such as Andean condors and Steller's sea eagles in-flight within towering, outdoor flight cages on the lake's eastern shore.

[48] Balto, along with six surviving teammates from the serum run, were purchased from a traveling circus owner in Los Angeles by the citizenry of Cleveland following a ten-day fundraising campaign.

Timmy was managed indoors in human care for 25 years before being sent on breeding loan to the Wildlife Conservation Society's main campus and headquarters at the Bronx Zoo.

The consideration of separating Timmy from his companion Kate, was met with much protest by animal rights activists and was the subject of a federal court case.

CMZ Director Emeritus Steve H. Taylor cites the lawsuit surrounding the breeding loan as one of the most significant in the history of modern zoos.

[58] Participants are tasked with preparing meals, cleaning enclosures, conducting training exercises, and providing animals with enrichment items to stimulate them both mentally and physically.

exhibits showcased dinosaurs from around the world: Tyrannosaurus rex, Stegosaurus, Triceratops, Pteranodon, Omeisaurus, Dilophosaurus, Baryonyx, Iguanodon, Styracosaurus, Apatosaurus, Kentrosaurus, Brachiosaurus, Suchomimus and more.

[64] Offering scenic views of nearby Waterfowl Lake and a capacity of up to 300 guests, Stillwater Place is open year-round and caters to many occasions, such as weddings, birthdays, reunions and more.

In 1938, Judy Zemnick, a young artist with the Works Progress Administration (WPA), was pulled into an enclosure by a polar bear named "Silver" and "badly mangled," according to news reports.