by Roger Abrantes


Course Description

Evolution is the process of change in all forms of life over generations; evolutionary biology is the study of how evolution occurs. Behavior is as a tool in the struggle for survival and reproduction. Charles Darwin in his ‘The Origin Of Species By Means Of Natural Selection’ (1859) was the first who formulated the hypothesis that species evolved as a result of the struggle for life, i.e. as a result of natural selection, where the fittest had an advantage.

Course Level

Beginner. This course is an introduction to evolution and essential to the understanding of behavior, its development, and evolution.

Course Textbook

“Evolution—An Introduction”

by Roger Abrantes, Ph.D. in Evolutionary Biology and Ethology.


For this course, you’ll get the text of the book especially edited as four lessons, each with a quiz.


Course content and structure


Lesson One:

  1. Evolution; history of the theory of evolution; the theory of Evolution by natural selection.
  2. Variation; adaptation.
  3. Sexual selection.

Lesson Two:

  1. The algorithm of natural selection; evolution has no goal.
  2. The evolution of the eye.
  3. Phyletic gradualism and punctuated equilibrium.

Lesson Three:

  1. Life.
  2. Animals and taxonomy.
  3. The origin of life.

Lesson Four:

  1. Species and speciation. Darwin on species and speciation.
  2. The evolution of humans.
  3. Natural selection.

Supplementary Literature

Although not mandatory, we recommend that you supplement your readings with:

Online Studying and Tutoring

Watch the movie(s) and read the book(s). Join the course forum where you can read our tutors’ answers to questions previously posed by your colleagues. If you have a new question, do not hesitate in posting it.

The course forum is solely for academic questions. For administrative matters or difficulties accessing the functionality of the site, please submit a ticket.

Once you’re ready for it, take the quizzes. You may take a quiz as many times as you like. We recommend you re-take quizzes once a year as a self-imposed quality control.

Demo Course

by Tutor Team


This is a demo course, just an example to show you how easy it is to complete our courses.

A normal course would give you here:

  • a button to enroll and purchase the course,
  • a description of the course,
  • information about the main textbook,
  • course level,
  • the content of the textbook and course,
  • information about tutoring and the test to complete the course,
  • a section with the lessons you can access.

In this demo course, we have two lessons. The first one has two topics. There are two small quizzes for each lesson and a larger one (20 questions) as the course final quiz. All lessons are very short in this demo course. The first two deal with definitions and terminology and the second one with animal behavior in general.

Note that you have access to the course forum (on the right-hand side of the page). You post your questions to your tutors here. Go to the forum before posting a question. Maybe, a fellow student posed it, previously.

The course progress bar shows you how much coursework you have completed. When it’s full, you’re done.

Your student profile reflects all your activity. You can access it from the main menu.

You need to have registered an account to take any course (this is the only way our database can keep your progress and scores). If you have an account, please, log in. If you do not, please, create a free account here. Then, come back and let’s get going — click “Take this course.”

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