This lady has the sweetest voice ever.. I'm expecting her to say she made cookies for me at the end of the video or something. Very helpful!! Thank you!!

Why can't my lecturers sound this kind and enthused 😂 so good.

I'm so getting an A+ on my Bio final. In fact, it's even in my blood.

13:08 "He's so positive" 😂😂😂

You explained this better in a few minutes than I have understood in 2 weeks of study. THANK YOU!

"they have a little..depression" me: "lol, same."

Probably the BEST educating video. Education systems should follow similar concepts!

I have had this explained to me 1,000 times by different professors, and I have always struggled with antigen vs antibody, and it's been so frustrating. You are the only who has explained this in a way that I can actually understand! Thank you!

Discovered your videos today and binge-watched ! I am a 70 year old PhD and you have explained things that I never understood, but just memorized ! Your deep understanding allows for an elegant and entertaining presentation. I will recommend you to my grandchildren and my AARP friends as well.

"Look at him, he's so positive" xD Love your videos, Penguin Prof! Thank your for taking the time to help us out :) Have a wonderful day!

I just saw donuts on thumbnail and I came here...

Studying hard for my final! Pray that I get an A on my anatomy final !

That was great!! Thank you so much! also its refreshing to have the teacher in the video sound enthusiastic about what theyre teaching, it helps me learn and retain the information. Youre awesome.

Thank You so much for making this so easy to understand!!! I love, love, love your video!!

What a wonderful comparison.

Great clarity, mnemonic, and tone! Loved this explanation :)

T'was just so impressive! The explanation, clarity of the video and your voice was just perfect!!! Thank you so much! It helped a lot!😄😄😄

I absolutely loves this video. Shes a great teacher! Keep me interested the entire time and made it relatable.

This is excellent and I love the humor. Please keep posting awesome videos like this one!

This analogy sounded so weird at first, but after watching I realize it was just *perfect*. Thank you so much :)

Best description I've seen thus far. Thank you!

thank you so much. i have a blood test tomorrow and was freaking out with all the crap i had to learn on top of this chart and you just made it soooo easy! THANK YOU! nursing school is so hard but people like you who make these videos make a major difference in helping me study

This is right up there (if not better) with the best - Khan Academy, Bozeman Science, Crash Course... thanks for your amazing work!

I never taught that I would understand blood typing until I stumbled upon your channel. After watching ur content, I subscribed straight up. God bless you.

You have saved me with my human bio test! Thank you so much!!! It was very easy to understand, much more than the strange worksheets given in class. Thank you again!

You are so nice and really good at explaining, thanks so much :)

Thank you so much for making videos that are simple yet very informative. It really helps me to understand difficult concepts while studying in nursing. ☺️ I like the way you explain. Thanks again❤️

You have such a wonderful voice. It has the magical ability to cheer everyone up.

so informative... Thank you

Thank you so much! I couldn't understand any of this during lecture & you just explained it to me in such a short amount of time, thank you❤️

Awesome visuals and comparisons. Thank you!

In love with her voice!!! Thank you! Greetings from Argentina.

I love your lecture - you enthusiasm and up beat personality in your voice make it much more fun learn.

This was an amazing video and I loved the donut analogy. They way you explained the material was very helpful.

THANK YOU SO MUCH!! You are so clever and sweet and funny this are the moments when you enjoy learning, loved it, keep the donnuts and kitties flow up!!

Thank you so much ma'am for making this so easy to understand, loved this! :)

Literally the most helpful teaching video I've ever watched. Thank you!

The donut analogy works great! Never gonna forget this! Very interesting. Thank you!

THANK YOU THANK YOU THANK YOOOOOOUUU!!! I got so confused in Haematology class about blood grouping and you couldn't have cleared it up any better :)

Fantastic video!! So clear and provided the right depth of relevant information.

I'm in my first year of grad school working towards my Family Nurse Practitioner degree and I love watching your videos. You make it so easy to understand! Keep it up!!

Thank You for sharing. This is absolutely helpful and interactive. Much Appreciated. :)

You are incredible. Your energy is very contagious and engaging.

This was an awesome way to remember the fast paced lecture I had last week! haha thank you!

Beautifully explained, makes sense when you break it down like this...especially into doughnuts :) Thank you very much!

I’m not even from the medical field but this was so easy to follow and learn. Great job explaining the subject!

Thank you for this vid. Hoping to see videos of other blood types too!

Have no need to know this stuff. Just find it really interesting and hard to stop watching. That's a good thing. Will be checking out your other videos.

Loved this! Thank you so much!

This was awesome. I missed lecture on this topic and because I watched this video I don't feel lost at all. Very confident now. Thank you.

Excellent video! One of the best by far! Thank you!

love this! Now i have a clear understanding about blood typing... still a lil confuse about Rh antigen.

Thank you for all of your help! This made it so much easier to understand :)

thank you, you're the best!! greetings from belgium

Thank you very much for the clarity in your voice and explanation. Very informative and easy to follow along. Please make more videos especially regarding other science topics!!

Thanks for the clarification.

My Instructor sent me the link to your video and I'm glad that she did. The reading material was confusing and now this makes it make sense. The video was very informative, helpful, and helpful. Thank You.

the best video I've found on this! Thanks !

I looked for this out of pure curiousity, and I really enjoyed this video. Eaesily understandable, thankies :d

Good job. smooth presentation with no interruptions. Splendid!!!

Your lesson is so interesting and heartwarming! ☺️

Useful and very entertaining video! You made learning less stressful & at the same time fun 😊now i finally understand!

I see you deleted the old video of blood types (i saved it under favorites). I love this video as much as i loved your old video.You're a true blessing to mankind. :-)

pretty clear, hadn't seen your vids before. i'll be back! thanks!!

You saved my life. I love you. I'm so gonna ace my final tomorrow. Thankyouu.

Thank you so much! This is very helpful!!! Keep up with the videos, I look forward to watching more from you!!

This video was SO helpful. Thank you so much!!

This video is amazing!! The first women I've heard on youtube science channels! You sound so happy and nice and all the pictures have really got this ingrained in my memory. Thanks heaps and please keep making these videos!

Very well presented. The ABO group system could be hard to understand but you made it look real simple.Awesome. job!

Very clear cut! Good job

this lady is amazing.

Great help for me to understand these concepts. Thanks!

You just helped me SO much! Thank you!!!

That was really helpful, I appreciate your efforts.

You are so awesome. Loved this! Can you please make Anatomy and Physiology videos?

Best analogy ever, donut with sprinkles .... Thank God we have teachers like you out there...

This video was provided by one of my professors in a medical program. It would very helpful for someone who has never learned about the ABO group before.

I cant tell how much I am glad I found your video! Thank you so much. It was very helpful!!

Wow this was amaizing!! Totally understood everything! Thanks

This is very well done. I'm taking my nursing national boards exam and I was looking for a visual refresher on blood and RH and this was great. :)

What a great video! I just understand something I heard when I was a child (my dad is Rh- and my mother was pregnant. They were checking the blood type of my little sister for knowing if that was her last pregnancy). GREAT GREAT GREAT CHANNEL!!

Great analogy with the sprinkles ;) loved it thank you

I love this channel! Thank you.

I love this. I learned so much.

this was soooo HELPFUL. Thank you so much

I had a hard time understanding this process until I watched this video...thank you so much!! Huggss!!

This is the best hands down! am glad i found this video

This is the best explanation ever ! Thankkk youuuuuu

This was amazing! I loved learning more about my blood type, especially the ending because I am a pregnant lady with o negative blood conceiving a positive baby. Thank you...you kept me interested the whole way through!. :)

You have beautiful voice. Very well explained - thanks!

You were so great at explaining this, thank you!

Outstandingly fun and helpful. Thanks!

Watched this video 2 years ago, needed to refresh - play it ONCE and you get it! Wish you had Micro videos :( Needed your educating skills this semester :)

This was extremely informative. Thank you

I'm in love with your videos!

Your are AMAZINGGGG. You made this topic for USMLE more easy to understand!! Thank you!!

so awesome..... and easily understood about blood types,,,,,,,,,,thank you penguin prof channel

Very helpful video. I teach middle school and blood typing is challenging for my students. This video will help. Thanks

You sound so passionate about biology, i love it! Nice lesson as always, thank you!!

you are amazing!!! thank you so much this will definitely help with my a and p test this saturday thank you!!!