This is for Steven Mading and others who are vague on the anatomy of a giraffe.

If you have ever done a handstand or hung upside-down, you know the feeling of the blood rushing to your head. This is not a big deal for people, but it should be a problem for giraffes. The giraffe is the tallest animal in the world (up to 20 feet) and has a neck about 7 feet long. Your heart pumps blood up about a foot. A giraffe’s heart has to pump blood up 7 feet! A plumber or irrigator understands this principle well. A normal person’s blood pressure is 120/80. A giraffe’s normal blood pressure is around 240/180, which is the highest of all animals.

If our blood pressure gets up to just 180, it is called a hypertensive emergency and must be lowered immediately or it can result in permanent organ damage and death. The question is, why doesn’t a giraffe damage its brain or kill itself when it bends down? The answer is found in a number of uniquely designed parts.

1. An Enlarged Heart. To get the blood to its head in the first place, the giraffe needs a large and powerful heart. Your heart is about the size of your fist. A giraffe’s heart is about 2 feet long and can weigh over 25 pounds. Its heart is also very powerful. “For blood to reach the head, the heart must beat strongly enough to overcome the significant downward pressure caused by gravity”.

Its heart also pumps 16 gallons of blood per minute. The giraffe certainly has the right heart for the job.

2. Valves. When a giraffe bends down, there are two problems. (1) The increased blood pressure from the heart, and (2) blood that has already passed through the brain being pulled back by gravity. To correct the issues caused by gravity, the giraffe has special valves in the main veins of the neck (jugular veins) which automatically close when the giraffe bends down and open when it lifts back up. This significantly reduces the pressure in its head when it bends down.

3. Blood Vessels. The walls of these vessels are extra thick and grow thicker as the giraffe’s neck grows and the blood pressure increases. The thick walls keep the vessels from rupturing under all the pressure. Besides this, the giraffe’s blood vessels have elastic qualities. So, the giraffe’s vessels will expand and contract to change the volume of blood flowing to the brain when it bends down. Doing so decreases the pressure in the brain.

4. The Sponge. At the base of the giraffe’s brain is a complex maze of small blood vessels (called the rete mirabile). When the giraffe bends down, the rete mirabile acts like a sponge by expanding the blood vessels and containing the extra blood coming to the head. Doing so lowers the blood pressure and controls the amount of blood entering the brain. When the giraffe brings its head back up, the rete mirabile pushes out the blood it was holding into the giraffe’s brain so it doesn’t get light headed on the way up.

It takes ALL of these features just for a giraffe to bend down to get a drink of water and raise back up! This puts evolution in a difficult position.

If the giraffe did not have a strong enough heart, it could not get blood to its brain and would not survive.

If the valves in the blood vessels did not contract and close off, too much blood would rush to the giraffe’s brain and it would not survive.

If the giraffe did not have the sponge like maze of blood vessels and did not have special vessels that could expand and contract and control blood pressure, the brain would be damaged and it would not survive.

So, evolutionists, which evolved first?

Every one of these parts has to work together FLAWLESSLY in order for the giraffe to survive.

Not having any one of these qualities right from the get go, would be fatal.

Giraffes are but one fine example among many many thousands that show they were purpose built for their diet and environment right from the start.

Anything after that is merely ADAPTION, which has been cleverly factored in to our DNA. DNA which has billions of combinations and an error correcting code to prevent anything changing from one KIND into another. Surprise.

Yes, DNA itself won't allow a fish to turn into a lizard. Or whatever. It allows for corruption, deformities and adaption, as it works by copying the original, but DNA has recently been found to be digital, not analog.

And the maths involved to work out the odds of DNA occurring by chance are so astronomically huge, so big, we need stacks of trillions to handle the zeros.

Of course, we are all aware that the scientific community regards as anything with odds of 10 to the power of 50 against ..... AS ABSURD. (impossible).

As another example, take our haemoglobin molecule, the odds of that occurring have been worked out to about 10 to the power of 605.

Again, way way over the international scientist benchmark for ABSURD.

Giraffes, etc, are in my opinion, proof of intelligent design and of a God who has the knowledge and power to make every single part of an organism work flawlessly, from the get go.

Organisms of such astronomically complex construction, detail, beauty and functionality.

NB: To assist you all, try looking up the complex Woodpecker, and the Bombadier Beetle. Astounding as the Giraffe, wouldn't you say?

Thank you for reading this far.

Hope this helps .....