Kenya dating 43 years free six

Then, within just the past 12,000 years, our ) evolved in Africa.

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By 1995, at least 83% of Earth’s land surface had been directly affected by humans.

In 2004, the International Union for Conservation of Nature (IUCN) reported that current bird, mammal, and amphibian extinction rates were at least 48 times greater than natural extinction rates—possibly 1,024 times higher.

The Turning Point Eventually, humans found they could control the growth and breeding of certain plants and animals.

This discovery led to farming and herding animals, activities that transformed Earth’s natural landscapes—first locally, then globally.

FACT: Fewer than 14 species of animals account for 90% of global livestock production today.

FACT: About a quarter of Earth’s surface is used to grow crops.

They evolved behaviors that helped them respond to the challenges of survival.

The first modern humans shared the planet with at least three species of early humans.

Modern humans have spread to every continent and grown to huge numbers.

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