Baboon in the context of Tool use

Primates is an order of mammals, which is further divided into the strepsirrhines, which include lemurs, galagos, and lorisids; and the haplorhines, which include tarsiers and simians (monkeys and apes). Primates arose 74–63 million years ago first from small terrestrial mammals, which adapted for life in tropical forests: many primate characteristics represent adaptations to the challenging environment among tree tops, including large brain sizes, binocular vision, color vision, vocalizations, shoulder girdles allowing a large degree of movement in the upper limbs, and opposable thumbs (in most but not all) that enable better grasping and dexterity. Primates range in size from Madame Berthe's mouse lemur, which weighs 30 g (1 oz), to the eastern gorilla, weighing over 200 kg (440 lb). There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and six in the 2020s.

Primates have large brains (relative to body size) compared to other mammals, as well as an increased reliance on visual acuity at the expense of the sense of smell, which is the dominant sensory system in most mammals. These features are more developed in monkeys and apes, and noticeably less so in lorises and lemurs. Some primates, including gorillas, humans and baboons, are primarily ground-dwelling rather than arboreal, but all species have adaptations for climbing trees. Arboreal locomotion techniques used include leaping from tree to tree and swinging between branches of trees (brachiation); terrestrial locomotion techniques include walking on two hindlimbs (bipedalism) and modified walking on four limbs (quadrupedalism) via knuckle-walking.

Tool use by non-humans is a phenomenon in which a non-human animal uses any kind of tool in order to achieve a goal such as acquiring food and water, grooming, combat, defence, communication, recreation or construction. Originally thought to be a skill possessed only by humans, some tool use requires a sophisticated level of cognition. There is considerable discussion about the definition of what constitutes a tool and therefore which behaviours can be considered true examples of tool use. A wide range of animals, including mammals, birds, fish, cephalopods, and insects, are considered to use tools.

Primates are well known for using tools for hunting or gathering food and water, cover for rain, and self-defence. Chimpanzees have often been the object of study in regard to their usage of tools, most famously by Jane Goodall, since these animals are frequently kept in captivity and are closely related to humans. Wild tool use in other primates, especially among apes and monkeys, is considered relatively common, though its full extent remains poorly documented, as many primates in the wild are mainly only observed distantly or briefly when in their natural environments and living without human influence. Some novel tool-use by primates may arise in a localised or isolated manner within certain unique primate cultures, being transmitted and practised among socially connected primates through cultural learning. Many famous researchers, such as Charles Darwin in his 1871 book The Descent of Man, have mentioned tool use in monkeys (such as baboons).

Thoth (from Koine Greek: Θώθ Thṓth, borrowed from Coptic: Ⲑⲱⲟⲩⲧ Thōout, Ancient Egyptian: Ḏḥwtj, the reflex of ḏḥwtj "[he] is like the ibis") is an ancient Egyptian deity. In art, he was often depicted as a man with the head of an ibis or a baboon, animals sacred to him. His feminine counterpart is Seshat, and his wife is Ma'at. He is the god of the Moon, wisdom, knowledge, writing, hieroglyphs, science, magic, art and judgment.

Thoth's chief temple was located in the city of Hermopolis (Ancient Egyptian: ḫmnw /χaˈmaːnaw/, Egyptological pronunciation: Khemenu, Coptic: Ϣⲙⲟⲩⲛ Shmun). Later known as el-Ashmunein in Egyptian Arabic, the Temple of Thoth was mostly destroyed before the beginning of the Christian era. Its very large pronaos was still standing in 1826, but was demolished and used as fill for the foundation of a sugar factory by the mid-19th century.

Old World monkeys are primates in the family Cercopithecidae (/ˌsɜːrkoʊpɪˈθɛsɪdiː/). Twenty-four genera and 138 species are recognized, making it the largest primate family. Old World monkey genera include baboons (genus Papio), red colobus (genus Piliocolobus), and macaques (genus Macaca). Common names for other Old World monkeys include the talapoin, guenon, colobus, douc (douc langur, genus Pygathrix), vervet, gelada, mangabey (a group of genera), langur, mandrill, drill, surili (Presbytis), patas, and proboscis monkey.

Phylogenetically, they are more closely related to apes than to New World monkeys, with the Old World monkeys and apes diverging from a common ancestor between 25 million and 30 million years ago. This clade, containing the Old World monkeys and the apes, diverged from a common ancestor with the New World monkeys around 45 to 55 million years ago. The individual species of Old World monkey are more closely related to each other than to apes or any other grouping, with a common ancestor around 14 million years ago.

The hamadryas baboon (Papio hamadryas /ˌhæməˈdraɪ.əs/; Tigrinya: ጋውና gawina; Arabic: الرُبَّاح, Ar Robbaḥ) is a species of baboon within the Old World monkey family. It is the northernmost of all the baboons, being native to the Horn of Africa and the southwestern region of the Arabian Peninsula. These regions provide habitats with the advantage for this species of fewer natural predators than central or southern Africa where other baboons reside. The hamadryas baboon was a sacred animal to the ancient Egyptians and appears in various roles in ancient Egyptian religion, hence its alternative name of 'sacred baboon'.

The Guinea baboon (Papio papio) is a baboon from the Old World monkey family. Some (older) classifications list only two species in the genus Papio, this one and the hamadryas baboon. In those classifications, all other Papio species are considered subspecies of P. papio and the species is called the savanna baboon.

The Guinea baboon inhabits a small area in western Africa. Its range includes Guinea, Senegal, Gambia, southern Mauritania and western Mali. Its habitat includes dry forests, gallery forests, and adjoining bush savannas or steppes. It has reddish-brown hair, a hairless, dark-violet or black face with the typical dog-like muzzle, which is surrounded by a small mane, and a tail carried in a round arc. It also has limb modifications that allow it to walk long distances on the ground. The Guinea baboon is one of the smallest baboon species, weighing between 13 and 26 kg (28.6–57 lbs). Their life spans are generally between 20 and 50 years.

The olive baboon (Papio anubis), also called the Anubis baboon, is a member of the family Cercopithecidae Old World monkeys. The species is the most wide-ranging of all baboons, being native to 25 countries throughout Africa, extending from Mali eastward to Ethiopia and Tanzania. Isolated populations are also present in some mountainous regions of the Sahara. It inhabits savannahs, steppes, and forests. The common name is derived from its coat colour, which is a shade of green-grey at a distance. A variety of communications, vocal and non-vocal, facilitate a complex social structure.

The yellow baboon (Papio cynocephalus) is a baboon in the family of Old World monkeys. The species epithet means "dog-head" in Greek, due to the dog-like shape of the muzzle and head. Yellow baboons have slim bodies with long arms and legs along with yellowish-brown hair. They resemble the chacma baboon, but are somewhat smaller and with a less elongated muzzle. Their hairless faces are black, framed with white sideburns. Males can grow to about 84 cm, females to about 60 cm. They have long tails which grow to be nearly as long as their bodies. The average life span of the yellow baboon in the wild is roughly 15–20 years; some may live up to 30 years.

Yellow baboons inhabit savannas and light forests in eastern Africa, from Kenya and Tanzania to Zimbabwe and Botswana. They are diurnal, terrestrial, and live in complex, mixed-gender social groups of 8 to 200 individuals per troop. Like all other baboon species, they are omnivorous, with a preference for fruits; they also eat plants, leaves, seeds, grasses, bulbs, bark, blossoms and fungi, as well as worms, grubs, insects, spiders, scorpions, birds, rodents and small mammals. All species of baboons are highly opportunistic feeders and will eat virtually any food they can find.

The Kinda baboon (Papio kindae) is a species of baboon present in the miombo woodlands of Angola, the Democratic Republic of the Congo, Zambia, and possibly western Tanzania. It was once considered a subspecies of the yellow baboon (P. cynocephalus), then distinct enough to merit status as full species (P. kindae) under the phylogenetic species concept.

It is named after the town in southern DRC where the type-locality was found.

The chacma baboon (Papio ursinus), also known as the Cape baboon, is, like all other baboons, from the Old World monkey family. It is one of the largest of all monkeys. Located primarily in southern Africa, the chacma baboon has a wide variety of social behaviours, including a dominance hierarchy, collective foraging, adoption of young by females, and friendship pairings. These behaviors form parts of a complex evolutionary ecology. In general, the species is not threatened, but human population pressure has increased contact between humans and baboons. Hunting, trapping, and accidents kill or remove many baboons from the wild, thereby reducing baboon numbers and disrupting their social structure.

A callosity is a type of callus, a piece of skin that has become thickened as a result of repeated contact and friction.

The mandrill (Mandrillus sphinx) is a large Old World monkey native to west central Africa. It is one of the most colorful mammals in the world, with red and blue skin on its face and posterior. The species is sexually dimorphic, as males have a larger body, longer canine teeth and brighter coloring. Its closest living relative is the drill, with which it shares the genus Mandrillus. Both species were traditionally thought to be baboons, but further evidence has shown that they are more closely related to white-eyelid mangabeys.

Mandrills mainly live in tropical rainforests but will also travel across savannas. They are active during the day and spend most of their time on the ground. Their preferred foods are fruit and seeds, but mandrills will consume leaves, piths, mushrooms, and animals from insects to juvenile bay duiker. Mandrills live in large, stable groups known as "hordes" which can number in the hundreds. Females form the core of these groups, while adult males are solitary and only reunite with the larger groups during the breeding season. Dominant males have the most vibrant colors and fattest flanks and rumps, and have the most success siring young.

The spotted hyena (Crocuta crocuta), also known as the laughing hyena, is a hyena species, currently classed as the sole extant member of the genus Crocuta, native to sub-Saharan Africa. It is listed as being of least concern by the IUCN due to its widespread range and large numbers estimated between 27,000 and 47,000 individuals. The species is, however, experiencing declines outside of protected areas due to habitat loss and poaching. Populations of Crocuta, usually considered a subspecies of Crocuta crocuta, known as cave hyenas, roamed across Eurasia for at least one million years until the end of the Late Pleistocene. The spotted hyena is the largest extant member of the Hyaenidae, and is further physically distinguished from other species by its vaguely bear-like build, rounded ears, less prominent mane, spotted pelt, more dual-purposed dentition, fewer nipples, and pseudo-penis. It is the only placental mammalian species where females have a pseudo-penis and lack an external vaginal opening.

The spotted hyena is the most social of the Carnivora in that it has the largest group sizes and most complex social behaviours. Its social organisation is unlike that of any other carnivore, bearing closer resemblance to that of cercopithecine primates (baboons and macaques) with respect to group size, hierarchical structure, and frequency of social interaction among both kin and unrelated group-mates. The social system of the spotted hyena is openly competitive, with access to kills, mating opportunities and the time of dispersal for males depending on the ability to dominate other clan-members and form ally networks. Females provide only for their own cubs rather than assist each other, and males display no paternal care. However, the spotted hyena is also very cooperative with their clan-mates; often hunting, eating, and resting together, and making use of their numeracy and communication skills to fight off a common enemy. Spotted hyena society is matriarchal; females are larger than males and dominate them.

The characteristic of cynocephaly, or cynocephalus (/saɪnoʊˈsɛfəli/), having the head of a canid, typically that of a dog or jackal, is a widely attested mythical phenomenon existing in many different forms and contexts. The literal meaning of cynocephaly is "dog-headedness"; however, that this refers to a human body with a dog head is implied. Such cynocephalics are known in mythology and legend from many parts of the world, including ancient Egypt, Libya, Greece, India and China. Further mentions come from the medieval East and Europe. In modern popular culture cynocephalics are also encountered as characters in books, comics, and graphic novels. Cynocephaly is generally distinguished from lycanthropy (werewolfism) and dogs that can talk.

In addition, the Greeks and Romans called a species of apes cynocephalus (these apes are suspected to be baboons).

The four sons of Horus were a group of four deities in ancient Egyptian religion who were believed to protect the dead in the afterlife. Beginning in the First Intermediate Period of Egyptian history (c. 2181–2055 BC), Imsety, Hapy, Duamutef, and Qebehsenuef were especially connected with the four canopic jars that housed the internal organs which were removed from the body of the deceased during the process of mummification. Most commonly, Imsety protected the liver, Hapy the lungs, Duamutef the stomach, and Qebehsenuef the intestines, but this pattern often varied. The canopic jars were given lids that represented the heads of the sons of Horus. Although they were originally portrayed as humans, in the latter part of the New Kingdom (c. 1550–1070 BC), they took on their most distinctive iconography, in which Imsety is portrayed as a human, Hapy as a baboon, Duamutef as a jackal, and Qebehsenuef as a falcon. The four sons were also linked with stars in the sky, with regions of Egypt, and with the cardinal directions.

The worship of the sons of Horus was almost entirely restricted to funerary practice. The sons were first mentioned late in the Old Kingdom (c. 2686–2181 BC) in the Pyramid Texts and continued to be invoked in funerary texts throughout ancient Egyptian history. Their connection with the canopic jars was established in the First Intermediate Period, and afterward they became ubiquitous in the decoration of canopic chests, coffins, and sarcophagi. Although they were increasingly closely associated with the internal organs, they continued to appear in burial equipment even after the use of canopic jars was abandoned in the Ptolemaic Period (303–30 BC), disappearing only in the fourth century AD with the extinction of the ancient Egyptian funerary tradition.

The gelada (Theropithecus gelada, Amharic: ጭላዳ, romanized: č̣əlada, Oromo: Jaldeessa daabee), sometimes called the bleeding-heart monkey or the gelada baboon, is a species of Old World monkey found only in the Ethiopian Highlands, living at elevations of 1,800–4,400 m (5,900–14,400 ft) above sea level. It is the only living member of the genus Theropithecus, a name derived from the Greek root words for "beast-ape" (θηρο-πίθηκος : thēro-píthēkos). Like its close relatives in genus Papio, the baboons, it is largely terrestrial, spending much of its time foraging in grasslands, with grasses comprising up to 90% of its diet.

It has buff to dark brown hair with a dark face and pale eyelids. Adult males have longer hair on their backs and a conspicuous bright red patch of skin shaped like an hourglass on their chests. Females also have a bare patch of skin but it is less pronounced, except during estrus, when it brightens and exhibits a "necklace" of fluid-filled blisters. Males average 18.5 kg (41 lb) and females average 11 kg (24 lb) in weight. The head-body length is 50–75 cm (20–30 in) with a tail of 30–50 cm (12–20 in).

The drill (Mandrillus leucophaeus) is a primate of the family Cercopithecidae (Old World monkeys), related to baboons and even more closely to the mandrill.