Unsurprisingly, it took a very long time to evolve - up to 20 million years, to be precise.
The origin of the giraffe’s most iconic feature has fascinated mankind for millennia, inspiring awe and wonder. Now, scientists have unravelled the mystery by mapping the complete DNA, or genome, of the world’s tallest creature for the first time. This showed its neck is due to a “turbo charged heart” that can pump blood six feet to the head. It formed thanks to dozens of mutations that allowed it to grow gradually, over millions of years.