I've wondered the same thing so I looked it up. The giraffe gestational period is approx. 15-22months and their newborns are approximately 180cm tall and 68kg.

I've wondered the same thing so I looked it up. The giraffe gestational period is approx. 15-22months and their newborns are approximately 180cm tall and 68kg. I wasn't able to figure out what the actual bottle neck in growth rate was, but best I could figure it had something to do with the normal surface-area/volume thing and how it affects nutrient diffusion across the placenta. If you look at Ancencelphy[0] and the development in artificial wombs[1] you can see that most of this work is simple engineering problems with the nerve reattachment being the only R&D stumbling block that remains. I honestly think that we could solve this problem in less than 10 years if we approached it as it were a moonshot or a mRNA covid vaccine. [0]https://en.wikipedia.org/wiki/Anencephaly https://en.wikipedia.org/wiki/Anencephaly [1]https://www.sciencealert.com/researchers-have-successfully-grown-premature-lambs-in-an-artificial-womb https://www.sciencealert.com/researchers-have-successfully-g...