Have you ever stood up really fast and gotten light-headed? Just imagine how much worse it would be if you were 15 feet tall. One fun and different animal is the giraffe with its amazingly long neck. But how can a giraffe bend its head down to get a drink and raise it back up without passing out from loss of blood? It turns out that a giraffe has a massive heart to maintain and high enough blood pressure to pump the blood up the neck to the brain. Just before the brain, special blood vessels expand to keep the extra blood from rushing into the brain when the giraffe leans over, and then supply the brain with blood when the giraffe stands back up. This super circulatory system is a fascinating example of God’s incredible design and creativity. It amazes me how God made giraffes and other animals to show His awesomeness.Other Fun Giraffe Sites:
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