Nepedia
Back to Discover
Advanced Reader
🧬

Hamadryas baboon

life science Maturity 5-7 Next article →

The hamadryas baboon is a unique species of Old World monkey.

Hamadryas harems
Hamadryas harems

It is the northernmost baboon species in the world. These primates live in the Horn of Africa and the southwestern Arabian Peninsula. Their habitats include arid areas, savannas, and rocky landscapes. They often require cliffs for sleeping and for finding water. Because they live in these specific regions, they face fewer natural predators than baboons in central or southern Africa.

Paviane Papio hamadryas Tierpark Hellabrunn-18
Paviane Papio hamadryas Tierpark Hellabrunn-18

These baboons show significant sexual dimorphism, which means males and females look very different.

Baviaan2
Baviaan2

Adult males are nearly twice as large as females. A male may weigh up to 30 kilograms and have a large body. Females weigh about 15 kilograms and have a shorter body length. Males develop a striking silver-white mane and mantle around age ten. Females are brown all over and have reddish or dark brown faces. Infants are born very dark brown or black, but their color lightens after one year.

Baviaan2
Baviaan2

The social structure of the hamadryas baboon is a complex multilevel society.

Hamadryas harems
Hamadryas harems

At the first level is the one-male unit, or harem. This group contains one leader male and up to ten females. Two or more harems unite to form clans. Within these clans, males are often close relatives. These clans join to form bands, which can include up to 400 individuals. Finally, several bands may come together to form a large troop, usually at sleeping cliffs.

Hamadryas harems
Hamadryas harems

This society is strictly patriarchal, meaning males hold the most power.

Fellpflege bei Mantelpavianen
Fellpflege bei Mantelpavianen

Males use visual threats to control females. They may flash their eyelids or yawn to show their teeth. If a female wanders too far, the male may grab or bite her. Males also engage in "takeovers," where they raid other harems to take females. Young "follower" males may also try to start harems by maneuvering immature females to follow them. Interestingly, females do not show dominance hierarchies among themselves because the harem males suppress their aggression.

As omnivores, hamadryas baboons eat a wide variety of foods to survive.

Papio hamadryas eating an apple
Papio hamadryas eating an apple

During wet seasons, they eat blossoms, fruits, seeds, grasses, and acacia leaves. They also eat roots, tubers, and tree gums. In dry seasons, they rely on sisal leaves and Dobera glabra leaves. They also hunt animals like insects, spiders, worms, scorpions, and even small antelope. Water is vital for their survival. If they are deprived of water, their internal body temperature rises significantly. They manage dehydration by increasing albumin synthesis to help retain fluids.

These baboons have a deep history in human culture.

Thoth-baboon-British-Museum
Thoth-baboon-British-Museum

The ancient Egyptians considered them sacred animals. They appeared in religious art as various deities. For example, the god Thoth was sometimes represented as a hamadryas baboon. The god Babi was also associated with them. Some people believed the baboons' behaviors were actually acts of worshiping the sun. This reverence led to the baboon appearing in many roles within ancient Egyptian religion and art.

Today, the main threat to the hamadryas baboon is the transformation of their habitat.

Paviane Papio hamadryas Tierpark Hellabrunn-18
Paviane Papio hamadryas Tierpark Hellabrunn-18

As humans expand farms and irrigation projects, the baboons lose their natural land. Their natural predators include striped hyenas, spotted hyenas, and African leopards. In Saudi Arabia, grey wolves also hunt them. Despite these local risks, the IUCN Red List classified the species as "least concern" in 2008. They continue to live in protected areas like the Harar Wildlife Sanctuary and various reserves in Eritrea.

560 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (6)
File:Papio hamadryas eating an apple.JPG
Papio hamadryas eating an apple.JPG
File:Hamadryas harems.jpg
Hamadryas harems.jpg
File:Fellpflege bei Mantelpavianen.JPG
Fellpflege bei Mantelpavianen.JPG
File:Baviaan2.JPG
Baviaan2.JPG
File:Thoth-baboon-British-Museum.jpg
Thoth-baboon-British-Museum.jpg
File:Paviane Papio hamadryas Tierpark Hellabrunn-18.jpg
Paviane Papio hamadryas Tierpark Hellabrunn-18.jpg
More to explore

🔬 Go deeper

More advanced topics to explore

🪜 Step back

Simpler topics to build understanding

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.