This was actually a C-section nonetheless!
“Contrary to journalistic hype, this case provides no insights into the supposed ‘evolutionary leap’ between egg-laying and live birth.3 In fact, Mary’s pregnancy was on the verge of killing her. She became so bloated that she needed a caesarean section to ‘deliver’ her tiny fish embryos—56 of these microscopic fish fry survived to become healthy adult sticklebacks, but only by being carefully reared in the lab. Sadly, Mary didn’t survive the ordeal.”
Picture from: https://pixabay.com/photos/salmon-spawning-fish-eggs-fish-50301/ accessed 1/6/23.