Evolutionary History

The process by which species adapt to environmental changes over a very long time.

• Paleontologist

• Species

• Body Structure

• Evolution

• Shared Structure

a scientist who studies fossils in order to understand the ancient history of life on Earth

• Paleontologist

• Species

• Body Structure

• Evolution

• Shared Structure

an older population from which two or more newer species descended

• Common Ancestor Population

• Species

• Body Structure

• Evolution

• Shared Structure

a more recent species that evolved from an ancestor population

• Common Ancestor Population

• Decendant Species

• Body Structure

• Evolution

• Shared Structure

when something stays mostly the same over time

• Common Ancestor Population

• Decendant Species

• Stability

• Evolution

• Shared Structure

the process by which one population evolves into two or more different species

• Common Ancestor Population

• Decendant Species

• Stability

• Speciation

• Shared Structure

the very long time that spans the history of Earth, from the very first cellular life to the present

• Common Ancestor Population

• Decendant Species

• Stability

• Speciation

• Evolutionary Time

sharing a common ancestor population

• Related

• Decendant Species

• Stability

• Speciation

• Evolutionary Time

a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group

• Related

• Species

• Stability

• Speciation

• Evolutionary Time

a part of an organism (for example, one or more bones)

• Related

• Species

• Body Structure

• Speciation

• Evolutionary Time