Quaternary period

This time starts 3 million years ago and leads us into the age of humans. The world is still cooling at the start of this time, but that gives way to global warming. The world cools and the world warms several times in this period. Ice ages last about 100,000 years, followed by about 100,000 of global warming as the earth wobbles in its travels about the sun. The continents are pretty much where they are today.

Neaderthals appear about 250,000 years back. Homosapiens about 180,000 years ago. Our earliest cave paintings are about 30,000 years old, which is when our Neaderthals disappear, and the ice begins to retreat and continues to do so to this day.

The last ice age ends about 10,000 years ago. As the world warms the first farms appear about 6500 years after ago.

Flowering seed bearing plants are spreading rapidly. At 30 million years back herbaceous plants with flowers show up. They can better handle changing seasons.

Pine trees, grape vines, oaks and spruces are spreading.

Insects and plants are co-evolving together. Our first nectar eating birds and bats appear. Plants that were fertilized by wind give way to insect fertilizing plants. Some grasses and trees revert back to wind fertilization.