"This timeline closely matches the archaeological evidence for the overlap ... Many Neandertal sequences may have been deleterious to humans and were therefore actively and rapidly selected against by ...
Martin models the evolution of life on Earth in a ... can change or develop over millions of years. The timeline shows how short a time humans have lived on Earth relative to the rest of the ...
To understand evolution, humans must think in much larger units ... we must try. This timeline provides a framework for doing so. Geology Introduction: The Changing Planet Earth has been ...
What defines mammals, the class of animals to which humans belong ... had previously placed mammalian development on the evolutionary timeline. This ancient dye that produced a bright crimson ...
Charles Darwin's theory of evolution by natural selection made us rethink our place in the world. The idea that humans shared a common ancestor with apes was a challenge to the foundations of ...