The Evolution of the Heart

Throughout history many different cultures across the world have concluded that the heart is the most important organ in the body. Often thinking the heart was more akin to a brain with blood vessels sending messages around the body. And although this is wrong, Its easy to see where the fascination with this organ in particular comes from, its the Centre of an incredibly complicated network of tubes meandering through almost every part of the body and is absolutely crucial for almost every function in the body. So How did such a complex mechanism evolve with multiple parts working together evolve? and how did animals get by without something so important for life, before the evolution of the heart?

If I have used artwork that belongs to you but have neglected to credit it this will just be because I was unable to find one. If this has happened please contact me and I will add a credit. Some Art work has been altered for the purposes of bettering them for video format; these alterations were done independent from the artists who created the original work, so they are not responsible for any inaccuracies that could have occurred with the changes being made.

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[yissibiiyte]

I had no idea that lungfish were the closest living relative of tetrapods, and that their lungs are homologous to ours. I always thought their lungs were the result of convergent evolution.

[octopusgoodness]

Just barely found this channel. Love how chill and non - clickbait the videos are.

[WTFBigboss]

It's beautiful how you can see the entire evolution of the heart on currently living animals. If possible, I wouldn't mind seeing more videos about the evolution of other organs, senses or specific body parts

[ZZValiant]

While watching this video the old Christian chestnut of "how did the heart, such a complex structure that seems incomplete and ineffective without all its constituent parts and aspects, evolve in steps? Surely, this disproves evolution." And here is a short video addressing every concern of that line of questioning lol. Very cool and interesting! Great job.

[prozenflame]

One of the most in depth biology channels, only the best wishes for you!

[xydya]

This is a fantastic idea, I'd love to see the evolution of other bodyparts! Can I suggest you do the human brain next?

[pattonramming]

This is a unique video rather than focusing on an organism or ecosystem we get in depth look at the origin and function of organs
Suggestions for future videos
1. Evolution of cats
2. The advantages of different types of reproduction
3. What animal group is best suited for a particular ecosystem

[buoy-]

This is such an amazing video, I love it so much. There were so many bells going off in my brain saying "so THAT'S how that's works" throughout the video. Simply great

[mustard]

This channel is so high quality and the narrator has the perfect cadence. I would probably pay for a full length movie about one deep subject.

[PaulPaulPaulson]

This was great! Would love to see more videos on specific organs or body parts! How about one on the evolution of fingernails?

[evankalis]

If you're looking for suggestions on other video topics I think digestive system would be really cool. Bring in ideas of how its on the outside of our body and how it came from radial symetry etc. Regardless i love the vids

[LimeyLassen]

You skipped something cool - four chambered hearts may be better for an active lifestyle, but three chambered hearts are better for animals that hold their breath underwater because they can make the body circuit a closed loop.

[Taeronai]

Suddenly a lot of my fragmented information from Wikipedia-surfing gets connected and makes sense - through a short, pedagogic AND aesthetically pleasing video.
It's channels like this that makes Youtube worthwhile.

[JustinSable]

If anyone was thinking, "if insects are size-limited by their open circulatory system, how'd they get big during the carboniferous?" There was a crap ton more oxygen readily available in the air back then.

[deniswilliam]

Your voice is perfect for these videos. I watch the videos when they are published but binge when I want to sleep and need a soothing voice and interesting material

[coyotemojo]

I love the way your videos explain the process of evolution. I'd like to see one that examines the evolutionary pressures that cause animals to become herbivores or carnivores. What causes a species to evolve from grazing peacefully with another and then one generation, they decide to attack and eat them.

[Rhoso]

I love the music in the background of these videos. Makes me feel like I'm in the Museum in Animal Crossing. Such a vibe.

[ingenuised]

a video on the integumentary system might be a good idea, specifically the evolution of skin and how it lead to things like hair, feathers & scales

[ZPALMY]

The evolution of the eye would be cool I guess! Great vid!

[brightblue]

I'm a bit sad you didn't mention the crocodilians who have a four chambered heart that acts like a three chambered heart.