In the olden days, some men would choose to settle their disputes with a duel. They would invite the other man to take weapon and they would fight them to the death. 200 years later, I figured out what was wrong. Those men that chose to duel were deceived by their hearts. Their deepest thoughts had led them to make their ego and glory more important than integrity, peace and the wellbeing of people. The heart of a man, his deepest thoughts and feelings are the most vile and evil things in the world. The heart of a man is sly like a cunning weasel. Never trust your heart. Never listen to it. Always look for insight and integrity. Try to learn to be blameless if you can. Maybe I'm wrong.
I was wondering if the dinosaurs had four chambered hearts like humans and other mammals. We have four chambered hearts so the used blood is sent straight to the lungs and we can release carbon dioxide better then reptiles and amphibians. When a human heart pumps, it pumps rich blood to the tissues and used blood to the lungs. Having a four chambered heart gives us endurance; a human can run many kilometres without stopping, a lizard can't because it only has a 3 chambered heart. Oxygenated blood and deoxygenated blood is mixed together.
