Die Geburt eines Menschen ist möglicherweise nicht besonders schwierig, da einige Totenkopfäffchenbabys einen Kopf haben, der fast doppelt so groß ist wie der Beckenraum ihrer Mutter
https://www.discovermagazine.com/human-childbirth-may-not-be-uniquely-difficult-as-some-squirrel-monkey-babies-have-heads-nearly-twice-the-size-of-their-mothers-pelvic-space-49308
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More great write-up on the topic [here](https://www.theatlantic.com/science/2026/06/childbirth-human-primates-difficulty/687731/), with this wild bit:
>Squirrel monkeys are also able to successfully birth babies by completely dislocating their pelvis during delivery—and their infants have been documented pulling themselves out of the birth canal once their shoulders are in the clear.
As a researcher adjacent to this field, but with a long-time interest in it, I hope this finally puts to rest the idea that human childbirth is dangerous/early because we walk upright (the so-called Obstetric Dilemma). Upright walking is [not the reason](https://blogs.scientificamerican.com/observations/why-humans-give-birth-to-helpless-babies/) our babies are born „early“ or „helpless“. Rather, human childbirth is uniquely dangerous because of our [wildly invasive placenta](https://doi.org/10.1111/j.1548-1433.2011.01351.x), which exposes us to greater risk for postpartum hemorrhage.
Kiwi birds lay an egg that is 20% of their body weight and elephants are pregnant for three years. There are a lot of examples of how nature has screwed over the females of various species.
I don’t know how to embed a photo in a comment – [this figure from the paper](https://www.nature.com/articles/s41559-026-03102-5/figures/3) showing the hip and head sizes together is quite illustrative
Hyenas would like a word about difficult births
Someone tell their wife this while she’s in labor