Uterine replicators were a very cool aspect of the Vorkosigan Saga by the very talented Lois McMaster Bujold.
It was extra interesting to see how the technology was adopted by different cultures and what a massive impact it had.
It was extra interesting to see how the technology was adopted by different cultures and what a massive impact it had.
Axolotl tanks in Dune might be the darkest version of this by book five.