What is Evolution?

• The change in the heritable characteristics of biological populations over successive generations is called Evolution.
• Species do not evolve linearly. There are various branches to the evolutionary process. One species can have its members branching out in different directions. Each branch would evolve individually and create an altogether new species in

Bacteria and Human

• Evolution is a slow and gradual process and species do not appear or disappear all of a sudden.
• Evolution can also be harmful at times. Thus, evolution is not always useful as evolution is not the same as
• The simplest form of life and complex forms both survive on the planet No form of the species can be called old or inefficient. Some forms evolve while some remain in their simplest forms.

What is the evolutionary line of humans?

• Chimpanzees and humans, both have evolved from a common A separation may have led to the two different species to evolve independently.
• DNA samples, fossils, time dating, and many other methods help to determine the evolutionary history of human
• Humans originally came from Humans have all come from a single species but have evolved differently in different parts of the globe.
• The most evolved species of human evolution that exist today is called Homo sapiens. Some of these ancestors lived in Africa while some of them left and migrated to other parts of the
• Due to the migration, people started occupying and spreading to other parts of the globe like West Asia, Central Asia, Eurasia, South Asia, East Asia, and
• People moved randomly and crossbred with the local These mixtures gave rise to distinct features in the human species.
• Thus, several distinct features characterise humans as people indigenous to a particular part of the