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HomeArticlesFree Online Marine Biology Courses 2023
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Free Online Marine Biology Courses 2023

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Online Marine Biology Courses. Are you considering a career in marine biology? To get you started, check out these free marine biology courses online. Your interest in specializing in marine biology will be piqued by the courses, which will provide you a foundational understanding of the subject.

The study of all living, moving, and filtering organisms in aquatic bodies is known as marine biology. A person who studies marine life and the species that inhabit it is called a marine biologist. You must enroll in and successfully complete the course at a recognized higher education institution in order to pursue a career as a marine biologist. Look for colleges that are known for their excellent marine biology programs and think about enrolling there to earn a degree in the field.

To become a marine biologist, though, you must first be confident that’s what you want to do and that you won’t change your mind at the last minute. In order to assist you confirm if you truly want to be a marine biologist, we have written this piece.

Additionally, this post will assist you understand marine biology if you have no prior knowledge of it because we have prepared a list of free marine biology courses available online. Before you decide to pursue a degree in marine biology, take advantage of these courses to obtain a firsthand understanding of what the discipline entails.

If marine biology is of interest to you, you can also sign up for the courses. You can enroll in the classes and learn as much as you can, even if you are studying something else or wish to enhance your knowledge of other academic areas. You have nothing to lose because the classes are entirely free and delivered online, and no knowledge is lost.

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Free Online Marine Biology Courses

1. Paleontology: Ancient Marine Reptiles

This ranks among our top free online marine biology courses, and it is provided by the University of Alberta, a prestigious Canadian university, through Coursera.

Paleontology is the scientific study of life that before the arrival of humans by a very long time. It also includes the analysis of fossils to classify creatures and learn more about how they interacted with their environments and one another. You will now be learning about marine life-related paleontology in this four-lesson course. It imparts a thorough understanding of the evolutionary changes that have place in prehistoric marine reptiles.

2. Marine Biology

Saylor Academy, a website known for providing university-taught courses online, has a free online marine biology course that you can take. Fortunately, this one is free, so you can get started right away to learn how marine biology is taught at academic institutions.

Since marine life differs from that found on land or in freshwater, the course delves further into the study of marine life in general and salt water in particular. You can study what makes them unique, how saltwater species can adapt, and how biodiversity is impacted by environmental conditions in marine communities.

3. Fundamentals of Biology

Before reading marine biology, students need have a basic understanding of biology, according to this free online marine biology course from Alison, another well-known online learning resource.

In light of that, this course was developed. If you have no prior knowledge of biology but are interested in studying marine biology, you must complete this course first. Before reading marine biology, it is necessary to have a thorough understanding of the study of living things, including their structure, growth, origin, evolution, and distribution.

4. Ecology Studies – Conversation Biology and Biodiversity

This free online marine biology course from Alison examines ecology in relation to marine biology with a focus on biodiversity and conservation biology. You must be knowledgeable with marine life conservation biology if you want to pursue a career in marine biology. With such information, you will be able to identify major risks, extinction-causing factors, how biodiversity loss endangers the ecosystem, and what steps can be taken to protect it.

5. Biology – Cell Theory, Metabolism, and Plant Biology

This course emphasizes that every living thing has a different biology, structure, and rate of growth. You may learn more about defining living organisms in this further free online marine biology course from Alison.

Additionally, students will study photosynthesis, plant biology, and the theory of cells in order to develop their understanding of the living things in their environment.

6. Biology – Cell Division

This free online course teaches you about mitosis, meiosis, embryonic stem cells, and cell replication, giving you a thorough knowledge of each concept and how it relates to the life all around you. You must be equipped with this knowledge if you want to succeed as a marine biologist.

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Top Schools for Marine Biology

Both undergraduate and graduate marine biology programs are available at a number of universities. The following institutions provide some of the top marine biology programs;

  • Boston University
  • The University of North Carolina
  • Eckerd College
  • The University of California
  • Oregon State University
  • The University of Maine
  • The University of New Hampshire
  • Stony Brook University
  • The University of Oregon
  • California State University

The top 10 institutions that provide marine biology are shown below. For information about the academic criteria and application date, contact each of the universities.

Career Opportunities for Marine Biologists

With a degree in marine biology, you could pursue a profession as;

  • Marine scientist
  • Research biologist
  • Botanist
  • Horticulturist
  • Microbiologist
  • Biological technician
  • Biologist


Are you more comfortable on land than in the water? Would you like to learn more about the marine creatures found in our oceans and seas, from blue whales and whale sharks to microscopic algae and plankton? Learn about becoming a marine biologist to start a thrilling career!

As a marine biologist, you could do a lot of things like improve our understanding of marine life, develop more sustainable fisheries, control how human activities like climate change and marine plastic pollution affect species and ecosystems, inspire others to safeguard our oceans, and much more.

FAQS on Free Online Marine Biology Courses

What is the easiest way to become a marine biologist?

An undergraduate (Bachelor's) degree in (marine) biology or ecology, aquatic biology, animal science, zoology, botany, or conservation biology is typically required for careers as marine biologists. Many also accept degrees in allied fields like geology, environmental science, or oceanography.

Can I learn marine biology online?

The most recent development in education is online learning, which has been around for a while but isn't frequently used. Due to the Covid-19 outbreak, it was necessary to utilize it since it is the safest approach to continue providing a high-quality education, and schools that do not now use it had to begin doing so.

There are many benefits that come with online learning, but you still receive the same kind of education whether you're in a classroom or not. Online education is convenient, quick to complete, affordable—in some cases even free—and virtually anybody can take part, no matter where they are in the world. Only a PC or tablet and Wi-Fi are required.

Is marine biology difficult?

The path to becoming a marine biologist is not easy. This also relies on the particular marine biology job you're looking to get. A bachelor's degree in marine biology is the bare minimum educational need for employment in the profession. However, many positions demand a master's or even a doctorate.

At what age do most marine biologists retire?

The average retirement age for marine biologists varies depending on the individual and the benefits provided by the employer. Some people choose to retire at age 60 or even later due to the good pay rates and job satisfaction, however this decision depends on the person.

Do marine biologists have to swim?

Diver certification is not necessary for marine biologists. Many jobs need working in a lab or an office, while field work typically include doing surveys from a boat or along the shore. Actually, swimming isn't even necessary! Being underwater and close to the species you are studying is, of course, exciting.

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