Apes are a clade of Old World simians native to sub-Saharan Africa and Southeast Asia, which together with its sister group Cercopithecidae form the catarrhine clade, cladistically making them monkeys. Apes do not have tails due to a mutation of the TBXT gene. In traditional and non-scientific use, the term "ape" can include tailless primates taxonomically considered Cercopithecidae, and is thus not equivalent to the scientific taxon Hominoidea. There are two extant branches of the superfamily Hominoidea: the gibbons, or lesser apes; and the hominids, or great apes.

• The family Hylobatidae, the lesser apes, include four genera and a total of 20 species of gibbon, including the lar gibbon and the siamang, all native to Asia. They are highly arboreal and bipedal on the ground. They have lighter bodies and smaller social groups than great apes.
• The family Hominidae (hominids), the great apes, include four genera comprising three extant species of orangutans and their subspecies, two extant species of gorillas and their subspecies, two extant species of panins and their subspecies, and humans in a single extant subspecies.

कपि या एप्स प्राणीजगत में होमिनोइडेया (hominoidea) महापरिवार की सदस्य जानवर जातियों को कहा जाता हैं। इनमे दो मुख्य शाखाएँ हैं -

• हीनकपि - यह छोटे अकार के कपि होते हैं, जैसे की गिबन, सियामंग, वग़ैराह
• वनमानुष- यह बड़े अकार के मानवनुमा कपि होते हैं, जो चार शाखाओं में होते हैं - चिम्पान्ज़ी, बोनोबो, गोरिल्ला, मनुष्य और ओरंगउटान