10 Best Biology YouTube Channels for Biology Learners
YouTube has replaced textbooks as the first stop for biology students. I get it. A 10-minute animation of mitosis beats reading about it for an hour. But with thousands of channels out there, most waste your time with outdated information or production quality that makes you click away in seconds.
I went through dozens of biology channels and narrowed them down to 10 that actually deliver. Some are massive (16 million subscribers), others are niche. All of them explain cell biology, genetics, ecology, and other core topics in ways that stick.
I evaluated each channel on four criteria: accuracy of content, production quality, upload consistency, and how well they explain difficult concepts. Channels that stopped uploading or have fewer than 500K subscribers (with one exception) didn’t make the cut.
10 Best Biology YouTube Channels
Crash Course Biology
Subscribers: 16.8 million | Best for: High school and college intro biology
Crash Course is the gold standard for educational YouTube. Founded by John and Hank Green, the channel covers dozens of subjects, but their biology series stands out. They recently released a brand new 50-episode Biology series hosted by entomologist Dr. Sammy Ramsey, which is a complete refresh of the original content.
Each episode runs 10-15 minutes and packs in more information than most hour-long lectures. The animations are top-notch, the pacing is tight, and the playlists are organized so you can binge an entire subject in a weekend. If you’re studying for AP Biology or just need a solid foundation, start here.
Khan Academy Biology
Subscribers: 9.3 million | Best for: Self-paced learning from basics to advanced
Khan Academy needs no introduction. Sal Khan started recording math tutorials in 2006, and the platform has grown into one of the largest free education resources on the planet. Their biology section covers everything from molecular biology and cell division to ecology and human physiology.
What sets Khan Academy apart is the integration with their website, where you get practice problems and progress tracking alongside the videos. The content has been translated into dozens of languages, making it accessible to students worldwide. Over 15 million people use Khan Academy every month. For structured, curriculum-aligned biology learning, this is hard to beat.
MIT OpenCourseWare Biology
Subscribers: 5 million+ | Best for: University-level biology lectures
MIT OCW is the largest .edu YouTube channel with over 430 million views and 7,000+ videos. Their biology lectures are full-length recordings from actual MIT courses, taught by professors who are active researchers in their fields.
This isn’t casual watching. Each video is a complete 50-minute lecture, organized into playlists by course. You’ll find introductory biology (7.012, 7.013, 7.014), genetics, biochemistry, and molecular biology. The production quality is straightforward (it’s a lecture recording), but the depth of content is unmatched. If you want to learn biology at the level of an MIT student, this is the closest you’ll get without paying tuition.
Ninja Nerd
Subscribers: 4.1 million | Best for: Biology, anatomy, physiology, and biochemistry
Ninja Nerd has exploded in popularity over the past few years, and for good reason. The channel covers biology, anatomy, physiology, biochemistry, and medical sciences with detailed whiteboard-style explanations that break down even the most complex topics.
What makes Ninja Nerd special is the depth. While most channels give you a 10-minute overview, Ninja Nerd goes deep with multi-part series on topics like the immune system, cardiovascular physiology, and neuroscience. The teaching style is clear and methodical, and the hand-drawn diagrams help you visualize processes that are tough to understand from text alone. One of the fastest-growing educational channels in the biology space right now.
Professor Dave Explains
Subscribers: 4.1 million | Best for: Biology, chemistry, physics, and debunking pseudoscience
Dave Farina covers biology, chemistry, physics, and math with a direct, no-nonsense teaching style. His biology content is well-structured, covering genetics, cell biology, evolution, ecology, and anatomy in organized playlists that follow a logical progression.
Professor Dave’s strength is clarity. He strips away jargon and explains concepts in plain language without dumbing them down. His videos typically run 10-20 minutes, hitting the sweet spot between too brief and too long. He’s also known for his science communication work, debunking pseudoscience and defending scientific literacy. If you appreciate a teacher who’s direct and passionate about accuracy, this channel delivers.
Osmosis
Subscribers: 3.6 million | Best for: Medical students and health science learners
Osmosis (now backed by Elsevier) is one of the leading YouTube channels for medicine and health sciences. With a library of 2,000+ videos, they cover physiology, pathology, pharmacology, and clinical medicine with clean animations and concise explanations.
The channel leans more toward medical biology than pure biology. That’s actually a strength if you’re pre-med or studying for exams like the NEET or MCAT. Each video breaks down a disease, organ system, or biological process into digestible chunks. They also have a companion website with flashcards and study tools for deeper learning.
Amoeba Sisters
Subscribers: 2.7 million | Best for: High school biology and visual learners
Don’t let the cartoon amoebas fool you. The Amoeba Sisters create some of the best animated biology content on YouTube. They cover cell biology, genetics, ecology, evolution, and everything in between with playful animations and a light, approachable tone.
The channel is especially good for high school students and anyone who finds traditional lectures intimidating. They break complex topics into fun, memorable explanations without sacrificing accuracy. They also offer companion handouts and worksheets on their website, which makes them a favorite among biology teachers too. If you’re a visual learner who wants biology explained simply, Amoeba Sisters is your channel.
Shomu’s Biology
Subscribers: 2.3 million | Best for: College-level biology and competitive exam prep
Run by Dr. Suman Bhattacharjee, Shomu’s Biology is one of the most comprehensive biology-only channels on YouTube. Unlike channels that cover multiple subjects, this one is 100% biology. You’ll find lectures on biotechnology, ecology, forensic science, marine biology, molecular biology, synthetic biology, and more.
Suman’s teaching style is enthusiastic and detailed. The videos are organized into neat playlists, making it easy to follow an entire topic from start to finish. This channel is particularly popular with Indian students preparing for competitive exams, but the content is universally applicable. If you want depth and dedication to biology, Shomu’s delivers consistently.
Bozeman Science
Subscribers: 1.4 million | Best for: AP Biology exam preparation
Paul Andersen is a former Montana Teacher of the Year (2011) who built one of the most respected science channels on YouTube. His AP Biology playlist is a go-to resource for students preparing for the AP exam, with clear explanations, excellent graphics, and a teaching style that makes difficult concepts click.
Bozeman Science doesn’t upload new content frequently anymore. Paul has shifted his focus to educational consulting and his “Wonder of Science” project. But the existing library of hundreds of biology videos remains incredibly valuable. Think of it as an archive of some of the best AP Biology content ever put on YouTube. If you’re preparing for the AP Biology exam, this playlist alone is worth your time.
Stated Clearly
Subscribers: 587,000 | Best for: Evolutionary biology and genetics
Stated Clearly takes a different approach from the other channels on this list. Instead of covering all of biology, they focus specifically on evolution, genetics, and natural selection with beautifully animated explainer videos.
Each video answers a specific question: “What is DNA?” “What is natural selection?” “What is a gene?” The animations are among the best in the educational YouTube space, and the explanations are designed for people with zero science background. This makes Stated Clearly ideal for anyone who struggled with evolution in school or wants to understand genetics without wading through jargon. The smaller subscriber count doesn’t reflect the quality. This channel punches well above its weight.
More Biology Channels Worth Checking
These channels didn’t make the top 10, but they’re still solid resources depending on what you need:
- iBiology – Features lectures from world-class scientists. The channel is transitioning to the Science Communication Lab brand, but the existing 600+ lecture archive is still available and excellent for advanced learners.
- Kurzgesagt – In a Nutshell – Not biology-specific, but their biology and evolution videos have some of the best animations on YouTube. Great for sparking curiosity.
- Science with Susanna – Susanna Heinze is a college biology instructor who explains physiology with hand-drawn diagrams. Small channel (~148K subscribers) but genuinely helpful for visual learners.
- Armando Hasudungan – Beautiful hand-drawn medical biology illustrations. Great for anatomy, pathology, and physiology topics.
How to Pick the Right Channel for You
Not every channel works for every learner. Here’s a quick guide based on where you are:
High school student? Start with Amoeba Sisters and Crash Course. Both explain concepts with animations and keep things engaging without overwhelming you with detail.
College biology student? Khan Academy and Shomu’s Biology give you the depth you need. Supplement with Ninja Nerd for anatomy and physiology courses.
Pre-med or MCAT/NEET prep? Osmosis and Ninja Nerd focus on medical biology. Pair them with the best biology books for comprehensive preparation.
AP Biology exam? Bozeman Science’s AP Biology playlist was built specifically for this. Crash Course is a good supplement.
Curious adult who wants to learn? Stated Clearly and Professor Dave Explains both assume zero prior knowledge and explain things in plain English.
YouTube is great for understanding concepts, but you’ll retain more if you take notes while watching. Check out my guide on how to write perfect biology notes for techniques that work well with video learning.
Recommended Biology Books
YouTube channels teach you concepts visually, which is great for biology. But they skip the practice questions and detailed explanations you need for exams. These fill that gap.
If you’re aiming for medical school, the Kaplan set covers biology alongside every other MCAT subject. It’s the most efficient way to review biology while preparing for the rest of the exam. For more, see my biology book recommendations.
- Covers all MCAT subjects: biology, biochemistry, general chemistry, organic chemistry, physics, psychology, and sociology
- Includes 3 full-length online practice tests with detailed answer explanations
- Updated for the 2025-2026 testing year with current AAMC guidelines
- Color illustrations and diagrams for visual learners
- Online companion with 900+ practice questions beyond the books
- Chapter summaries and review questions at the end of each section
The Premed Playbook Guide to the MCAT: Maximize Your Score, Get Into Med School
- Written by Dr. Ryan Gray, host of the Medical School HQ podcast
- Covers MCAT strategy, study planning, and score optimization techniques
- Section-by-section breakdown of what to expect on test day
- Includes advice on when to take the MCAT and how to build a study schedule
- Real student stories and score improvement examples
- Pairs well with Kaplan or other content-heavy review books
Frequently Asked Questions
Which biology YouTube channel is best for beginners?
Amoeba Sisters is the best starting point for beginners. Their animated videos explain biology concepts in simple, friendly language without assuming prior knowledge. Crash Course is another excellent option. Both channels cover core topics like cell biology, genetics, and ecology in an engaging way that keeps you watching.
What is the best YouTube channel for AP Biology?
Bozeman Science has the most focused AP Biology content on YouTube. Paul Andersen’s AP Biology playlist covers every topic in the AP curriculum with clear explanations and excellent visuals. Supplement it with Crash Course Biology for a different perspective on the same topics.
Can I learn biology entirely from YouTube?
You can build a strong conceptual foundation from YouTube, but you’ll need textbooks or practice problems for exam preparation. YouTube excels at making concepts click visually. Pair it with a good biology textbook and practice questions for the best results. Khan Academy is the closest to a complete learning system because it includes exercises alongside videos.
Which channel is best for medical students?
Ninja Nerd and Osmosis are the top picks for medical students. Ninja Nerd goes deep into anatomy, physiology, and biochemistry with detailed whiteboard explanations. Osmosis covers diseases, organ systems, and pharmacology with clean animations. Together they cover most of what you need for pre-clinical years.
Are these channels free to watch?
All 10 channels on this list have free content on YouTube. Some channels like Osmosis and Ninja Nerd offer premium memberships with additional features (ad-free viewing, downloadable notes, extra content), but the core YouTube videos are completely free.
How often should I watch biology videos for effective learning?
Consistency beats binging. Watching 1-2 videos per day (20-30 minutes) and taking notes is more effective than watching 10 videos in a weekend. Space out your viewing to give your brain time to process the information. Watch a video, take notes, and review those notes the next day before watching the next one.
What about channels for learning evolution specifically?
Stated Clearly is the best channel for evolution and genetics. Their beautifully animated videos answer specific questions like “What is natural selection?” and “What is DNA?” in a way that anyone can understand. Professor Dave Explains also covers evolution well as part of his broader biology series.
Conclusion
Biology is one of those subjects where visual learning makes a massive difference. Watching a cell divide on screen is fundamentally different from reading about it. These 10 channels cover everything from high school basics to university-level molecular biology, and they’re all free.
My recommendation: don’t stick to just one channel. Use Crash Course or Amoeba Sisters for quick overviews, then go deeper with Khan Academy or Ninja Nerd when you need more detail. If you’re also interested in science beyond biology, check out the best physics YouTube channels or my list of educational YouTube channels for kids.
The honest assessments here are refreshing. Not just a generic list but actual opinions on what works and what doesn’t.
Thank you for putting this together. As a student on a budget, knowing which resources are worth investing time in is really valuable.
I’ve tried several of these recommendations and they’re all solid choices. Good to see a well-researched list.
As a teacher, I’m always looking for good resources to recommend. This article is going straight into my bookmarks.
Shared this with my classmates. The descriptions for each recommendation are detailed enough to help us make informed choices.