Some more generic heart facts for you on a Sunday. The heart is a really clever organ in our body. It’s not as clever as some animals’ hearts though! Zebrafish can regenerate their hearts If you chop off up to 20% of their ventricle! A cheetah’s heart rate can speed up to 250 beats per minute within seconds, which is why it can only sprint for a short time… any longer and it’s organs would overheat. Wood frogs can stop the beat completely while hibernating and restart them when it’s warmer again. Crazy stuff!
The Long Cutie 