The Human Heart Is Unique Among Mammals For This Key Reason

<img width="1024" height="415" src="https://www.sciencealert.com/images/2024/08/ChimpRestingHeadOnGrinningMan.jpg" alt="chimp resting arm and head on grinning man"/>We are the odd ones out.

https://www.sciencealert.com/the-human-heart-is-unique-among-mammals-for-this-key-reason