Buddhism and Evolution I heard an atheist ask this question from a christian and found myself lost in this question as well.

Plainly and simply the question is this,


  How does your religion fit into earth's history?


His point was that although many religions talk about a very old human race, we are a new species. even if we deny all the archaeological evidence, we still can't answer how such a human civilization escaped the few annihilation earth faced, like the long ice age and the meteor that killed the dinosaurs etc.

Do we as Buddhists have an answer, considering we believe in an even older human race's existence?
When the Atheist asked his Christian pal about the evolution of this race, there is only some variations of one answer that our education system, the media and so-called information technology promotes. They are the main instruments used by the Western Christian countries in the present day. There is no freedom of knowledge or of media as there is no second opinion given at any time. It is what this ideology decides that is given to the public. The so called alternative view is only another version of the view of the western Christian mindset and people have no choice in this matter. Even today creationism is allowed to be taught in schools and Darwinian evolution and creationism are nothing but twin systems that try to give an answer to the question how the world (universe) was created and then evolved. 

What Buddha said on this is found in the Agganna sutta. Agganna Sutta is the 27th Sutta of Digha Nikaya collections. The sutta describes a discourse imparted from the Buddha to two Brahmins, Bharadvaja and Vasettha, who left their family and caste to become monks. These were two brahmins who were insulted and maligned by their own caste for their intentions. But what is important for us here is that the qualities of the Dharma (Law, truth) is the same as the qualities of the Buddha and forms his "truth body" or "Dhamma Kaya”. A reference from the Agganna Sutta says to his disciple Vasettha: 
"Tathagatassa h'etam Vasettha adivacanam Dhamma-kayo iti pi ...": 
O Vasettha! The Word of Dhammakaya is indeed the name of the Tathagata.

Dhamma in Buddhism has two primary meanings: the teachings of the Buddha which lead to enlightenment, and the constituent factors of the experienced world. A sankata is an entity arising due to a sankhara; a sankhara is also a sankata, because just like any other sankata, any sankhara arises and falls; thus sankhara is sometimes used to include both. However, a sankata is normally something that arises due to sankhara  (a living being, house, nest, a thought, hopes and dreams, etc) and eventually is destroyed. Nothing in this world lasts forever.
At the deepest level, anything in this world arises due to the mind. That is what was meant by the Buddha when he said, “manopubbangama dhamma……” or “mind precedes everything else…”. It is this that gets described in detail in the Agganna sutta.

In that sutta, the Buddha explains how conglomerates of “planetary systems” blow up and are re-formed in time scales of “mahā kappas“. He has given a simile to get an idea of the length of a mahā kappa and it is approximately several billion years. And this destruction of a “star system” seems to be what scientists have observed as a supernova. Supernovae are of common occurrence; about three of them can be expected to happen every century in our Milky Way galaxy.

A suddhāshtaka is a “packet of energy” and is the basic unit that all matter is made out of. It is much smaller than in energy compared to a light photon that we see. A humongous number of suddhāshtaka would have the energy of a light photon. A suddhāshtaka, being a sankata, is created by the mind. This is why the Buddha said, “manō pubbangamā dhammā…”, i.e., “everything has mind as the precursor…”.

It is a valid question to ask and observe that in the few annihilation that earth faced, like the long ice age and the meteor that killed the dinosaurs etc., the “what if so? questiion.When the human and animal realms are destroyed, all those beings would be reborn in the first rūpa realms. When that is gradually destroyed, they will be reborn in the next higher realm and so on, until they are all in the Abhassara realm.

Buddha’s explanation of how all living beings in the lower realms get into the Abhassara Brahma realm when our world system (Cakkavata) is destroyed is not properly explained in any text found online. When the Sun starts heating up, fine sense objects start being destroyed, and with time less and less sensual objects will be there to trigger kāma rāga. All humans and animal will move to higher realms (over an antakkappa which lasts billions of years).

Even though all dense material realms are all destroyed at the end of a world cycle, all rūpa and arūpa realms at or above the Abhassara realm remain intact. When the Solar system is “re-formed” after billions of years, they all gradually come down to lower realms. . In the future, it will become clear to us that anything in this world has origins that can be traced back to the mind. That is the story in the Agganna sutta.