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Thousands of years ago, humans began forming a relationship with an animal that would become one of history’s most important livestock species.
It could survive in harsh environments, eat vegetation that other animals avoided, and provide humans with food and valuable materials.
Over thousands of years, this animal spread around the world, adapting to new environments and developing hundreds of distinct breeds.
Learn more about the remarkable history of goats on this episode of Everything Everywhere Daily.
One of the most important domesticated animals is one that most people in the modern world don’t have direct experience with: the goat. Yet goats have allowed humans to live in places that would otherwise be difficult or impossible.
Taxonomically, goats belong to the Bovidae family. Members of the Bovidae family are primarily identified by permanent horns, a specialized four-chambered stomach, and hooves with two functional toes.
This evolutionary lineage is believed to have diverged from deer and giraffes around 20 million years ago. Early members of the Bovidae lineage lived in woodland environments and were small.
The earliest known bovid was a small antelope-like animal called an Eotragus. These creatures lived in Eurasia and had many of the key characteristics modern bovids have.
One trait that helped bovids succeed was their crowned teeth. It is believed these evolved to let the species consume tougher vegetation and grass.
Modern goats belong to the subfamily Caprinae, which includes sheep and several other mountain-dwelling bovids.
Caprinae includes domesticated goats and sheep, along with several related wild animals, such as muskoxen and mountain goats. Depending on the classification system, it contains roughly three dozen living species divided into several evolutionary tribes. Domestic goats belong to the subfamily Caprinae and the genus Capra.
Capra is the root of capricorn, the sign of the zodiac whose symbol is a goat.
As caprines evolved, different species adapted to habitats ranging from rugged mountains to rocky slopes. Their specialized hooves, strong limbs, and excellent balance let many species navigate terrain inaccessible to larger grazing mammals.
Goats and sheep evolved to live in more mountainous regions. Mountains gave them access to vegetation many other herbivores could not reach. Steep cliffs and rocky outcrops also offered opportunities to escape predators.
To consume this food, goats had to develop new behaviors to survive. Goats evolved a flexible browsing strategy that allows them to consume leaves, shrubs, and other vegetation that many grazing animals largely avoid. Their digestive systems and feeding behavior allow them to tolerate certain plant compounds, although many poisonous plants remain dangerous to goats.
Another trait that was developed for the mountains was their trademark agility. To survive, they had to climb trees and rocks, so goats evolved muscles and bones better suited for rapid, precise movement.
Goats were among the earliest livestock animals domesticated by humans, with evidence dating back approximately 10,000 years. Their domestication occurred during roughly the same broad period as the domestication of sheep, pigs, and cattle in Southwest Asia.
Not all wild animals are suitable for domestication. Typically, humans need animals that live in herds, reproduce quickly, and can adapt to living in captivity. Most animals can’t do this, but goats can.
Goat domestication did not start with a single community; it occurred across several groups from the eastern Mediterranean to the Persian Gulf.
The process of domestication is slow. Initially, people likely hunted goats for their meat, skin, and fur. However, over generations, humans turned to managing and herding goats. As this process continued, humans began protecting flocks from predators and controlling the goats’ movements.
This process worked relatively well because goats are social herd animals and naturally more docile. This made them easier to manage than aggressive or solitary species.
Additionally, goats are naturally very adaptable. They could survive in different climates, harsh terrain, and areas with little vegetation. This meant they could live where other livestock could not, making them particularly valuable. This meant they could provide Neolithic farmers with a reliable food source.
Archaeological evidence of bones from the slaughter of young goats suggests that domestication likely began between 10,500 and 9,500 years ago in modern-day Turkey and Iran.
Goat genetics sampled from Asia, Africa, and Europe show genetic similarities to those from the initial Neolithic sites, indicating that goat herders migrated to different regions, spreading domesticated goats through migration or trade.
Goats reached Greece approximately 8,500 to 9,000 years ago as Neolithic farming communities spread out of Southwest Asia. Farming subsequently expanded into the Balkans and across Europe through both coastal routes and inland river valleys. Goats had reached much of western Europe around 7,000 years ago, while their spread into northern Europe continued over the following millennia.
Similarly, domesticated goats were brought into North Africa around 7000 years ago. If you remember back to a previous episode, the Sahara was once a vast grassland just a few thousand years ago. As the Sahara became increasingly arid, pastoral communities spread into other parts of Africa, bring their livestock withe them. Sheep and goats eventually reached southern Africa about 2,000 years ago.
Domesticated goats spread eastward from Southwest Asia into the Indian subcontinent and eventually into Southeast Asia. Genetic evidence indicates these populations were connected to the original domesticated goats from the Fertile Crescent, although the precise routes and chronology of their movement remain uncertain.
When Europeans landed in the Americas and Oceania, they brought goats with them.
During the early stages of domestication, there wasn’t really a concept of different breeds. People viewed them as just goats.
However, as goats migrated around the world, they found themselves in very different environments. Goat herders began selecting traits that helped goats adapt to their environment and to human needs. This eventually led to the development of different goat breeds.
One key variable in domestication is that the animal must lose enough fear of humans to accept being fed and cared for. In the early days of domestication, one of the first traits selected was reduced fear of humans. Early goat genetic samples dating back 8100 years contain behavior-related genes we still see in domesticated goats today.
Genetic evidence indicates that domestic goats began acquiring traits associated with resistance to gastrointestinal pathogens more than 7,000 years ago. One important genetic variant appears to have originated through ancient interbreeding with a wild goat relative that later spread widely in domestic populations.
As goats became increasingly associated with farming communities, their diets changed to include agricultural byproducts and other food sources. Genetic studies have identified adaptations linked to these dietary changes, though researchers are still investigating the precise effects of individual genetic variants.
Early signs of deliberate selection date back about 8000 years, when herders began selecting goats for fertility, size, udder size, and color. Different groups had different traits that they preferred.
Ancient Egyptian art show that goats were already developing a variety of physical characteristics. Some had long, drooping ears, while others had twisted horns or were naturally hornless. These differences suggest that selective breeding was already influencing the appearance of goats thousands of years ago.
In West Africa, people preferred different traits. West Africans preferred smaller goats because they were more adaptable to the difficult conditions they lived in. They also selectively bred these goats to resist parasites that killed other livestock in the area. This goat type became known as the West African dwarf goat.
This phenomenon can be seen basically everywhere where goats went. No matter how isolated the community, people preferred certain traits. To create breeds, farmers selected specific goats to maximize numbers while keeping them healthy and strong, which strengthened the goats’ breed identity.
Although the term “breed” became part of everyday language as local populations developed distinct characteristics—such as the “Spanish goats” that migrated from South and Central America into the United States—the formal concept of standardized breeds only arose over the last 250 years, primarily in Europe and North America.
Examining the physical differences between wild and domesticated goats highlights which specific characteristics were favored during domestication. Domesticated goats generally developed smaller and more variable body sizes than their wild ancestors. However, this difference varies considerably among breeds, and some modern domestic goats can rival or exceed wild goats in size.
Global estimates suggest there are roughly 600 distinct goat breeds recognized today. Of these groups, Dairy goats are the most defined breeds and have the longest breeding records. Popular dairy goat breeds include the Saanen, Alpine, LaMancha, Nubian, Toggenburg, Sable, and Nigerian Dwarf.
Meat goat breeds include the Boer, Kiko, and Spanish, while fiber breeds include the Angora and Cashmere.
Goat production is highest in less-developed countries. India is by far the largest goat-producing country, with 211 million goats, followed by China with 118 million, Nigeria with 91 million, Pakistan with 87 million, and Ethiopia with 54 million.
Worldwide, there are approximately 1.19 billion goats.
Goats are increasingly used to clear unwanted vegetation through targeted grazing. Herds are brought into overgrown areas to consume invasive plants, brush, vines, and weeds that would otherwise require machinery or herbicides to remove.
Their ability to navigate steep slopes and difficult terrain makes them especially useful in areas equipment can’t reach. Goats are also used to reduce vegetation that can fuel wildfires. However, repeated grazing is often necessary to prevent unwanted plants from growing back.
The domestication of goats was one of the earliest and most important steps in humanity’s transition from hunting and gathering to agriculture. What began as managing wild animals in the mountains of Southwest Asia eventually produced hundreds of breeds adapted to environments around the world.
Goats provided early communities with reliable sources of meat, milk, and hides, while their remarkable adaptability let people settle in places where other livestock struggled to survive.
Today, billions of people benefit directly or indirectly from an animal first tamed roughly 10,000 years ago, making the humble goat one of the most successful domesticated animals.