"Ape" covers a specific, relatively small group of primates — far smaller than the monkey category it's often confused with. There are two broad types of apes, and understanding the difference clarifies a lot about where species like chimpanzees actually fit.
Lesser apes consist entirely of gibbons, found across South East Asian forests. Gibbons are smaller than great apes, exceptionally agile in the canopy — capable of swinging through trees faster than almost any other mammal — and typically form monogamous pairs, a social structure quite different from the larger, more complex great ape communities.
Great apes include orangutans, gorillas, chimpanzees, bonobos, and humans. All are larger-bodied than gibbons, generally more cognitively complex, and — with the sole exception of humans — currently classified as Endangered or Critically Endangered. This is the group most people picture when they think of "apes," even though it's technically only half the full ape category.
Found only in Borneo and Sumatra, orangutans are the only great apes outside Africa and the most solitary of the group, with adults typically foraging alone rather than in social groups. They're known for extensive tool use and among the longest inter-birth intervals of any mammal.
The largest living primate, gorillas live in small, stable family groups across Central Africa, led by a dominant silverback male. Mostly ground-dwelling and folivorous, gorillas are calmer and less socially volatile than chimpanzees despite their imposing size.
Found across more than 20 countries in West, Central, and East Africa — including Uganda, where the Bulindi Chimpanzee & Community Project works — chimpanzees live in large, complex fission-fusion communities and are among the most prolific tool-users of any non-human animal.
Chimpanzees' closest relative, found in the wild only in the Democratic Republic of Congo. Bonobo society is female-led and notably less aggressive than chimpanzee society, despite the two species' close genetic relationship.
Often overlooked in casual discussion, humans are, strictly speaking, great apes ourselves — sharing the core traits that define the group (no tail, large brain, complex sociality) with the other four non-human great ape species.
Regardless of type, every ape shares a defining trait monkeys lack: no tail. Apes also generally have larger brains relative to body size, broader chests built for hanging and swinging rather than running along branches on all fours, and — in several species — extensive tool use rarely documented to the same degree in monkeys.
Because each ape species has such a distinct ecology and social structure, a single "save the apes" strategy doesn't work in practice. A gibbon's canopy-based, monogamous lifestyle in South East Asia calls for entirely different protection than a chimpanzee community surviving in fragmented farmland forest in Western Uganda. Effective conservation has to be built around one species, in one specific landscape, addressing that population's actual, documented pressures.
The Bulindi Chimpanzee & Community Project's work — forest enrichment, corridor replanting, community livelihood support — reflects exactly this species- and site-specific approach, tailored to how wild chimpanzees actually survive in a landscape shared closely with farming communities.
How many gibbon species are there? There are around 20 recognised gibbon species, making lesser apes considerably more diverse, species-wise, than the five great ape groups.
Are siamangs a type of gibbon? Yes — siamangs are the largest gibbon species, distinguished by an inflatable throat sac used to produce loud territorial calls.
Is a chimpanzee more closely related to a gorilla or a human? A human — chimpanzees and humans share a more recent common ancestor with each other than either does with gorillas. Every one of these five ape groups faces its own combination of threats and habitat pressures, but chimpanzees in fragmented landscapes like Western Uganda's forest patches represent one of the clearest examples of how targeted, patient conservation work can still make a real difference even without a single large protected wilderness to rely on.
Zoos, sanctuaries, and conservation charities increasingly use this five-part framework to help the public understand exactly which ape they're supporting, since a donation aimed broadly at "apes" says far less than one clearly directed at protecting a specific species in a specific place. Understanding these five distinct groups is a small but genuinely useful step toward more informed, more effective conservation giving. Whichever species a supporter chooses to back, understanding these five distinct groups first makes that choice a genuinely informed one rather than a vague gesture toward wildlife in general. It is, in the end, a small investment of attention that pays off in better-informed giving. Small distinctions, taken seriously, add up to real conservation clarity.
Support the Bulindi Chimpanzee & Community Project to help protect this specific great ape population.