14,000 years ago, Earth grew warmer and environments changed

The changes transformed the way hunter-gatherers lived

The change also created new forests, lakes, and rivers  

The forests and rivers created perfect conditions to grow crops and domesticate animals

Early humans took advantage of the new climate change and began to grow crops

During these perfect conditions to grow crops, people also found out how to raise and tame animals. 

Wolf pups were captured and domesticated, then bred for hunting and protection

The first animals to be tamed for food (meat and milk) were sheep and goats (then pigs and cattle)

Some of these animals also provided wool, fur, bones and ligaments

Big animals (beasts of burden) were used to carry heavy loads and to pull carts

As early humans began to use animals for heavy work and for food, they began to settle down (became sedentary)

These early humans began to settle near estuaries (land where rivers feed into the ocean)

These estuaries had plenty of fresh water, salt water, and fertile land to grow crops

Early humans then began to settle down and live in permanent places around the world

This new change allowed humans to make new leaps forward in the evolution of humanity

Some early plants and animals used to look differently than they do today

For example, early chickens used to be way smaller and didn't have that much meat on them

Most early chickens used to weigh about two pounds 

Early humans bred them to become bigger and to provide more food for them