I have seen the foolish taking root: Job 5:3
"Twins were the norm for our ancient primate ancestors − one baby at a time had evolutionary advantages (The Conversation, 16 December, 2024).Q: Did these two evolutionary anthropologists witness twins being born among ancient primate ancestors? 
A: Of course not.
But the story’s the thing that pleases Emperor Charley. But wait a minute; if singletons have evolutionary advantages—
Q: if that is a law of nature—why is it more rare in other primates?
Q: Are they missing out on evolutionary advantages?
That doesn’t sound fair.
Since hallucinating is legal in evolutionary science,
there’s always a way to dream up a solution to a puzzle.
Just light the Deep Time brand incense and imagine:
For primates, and especially humans, childhood learning is crucial. We propose that the switch from twins to singletons was critical for the evolution of large human babies with large brains that were capable of complex learning as infants and young children.
Based on mathematical modeling, the switch to singletons occurred early on, at least 50 million years ago. From there, many primate lineages, including ours, evolved to have increasingly larger bodies and brains.
Twinning is dangerous, they conclude.
For primates, and especially humans, childhood learning is crucial. We propose that the switch from twins to singletons was critical for the evolution of large human babies with large brains that were capable of complex learning as infants and young children.
Based on mathematical modeling, the switch to singletons occurred early on, at least 50 million years ago. From there, many primate lineages, including ours, evolved to have increasingly larger bodies and brains.
Twinning is dangerous, they conclude.
Our primate ancestors never learned that. Somehow they have thrived anyway for many more millions of yearzzzzzz….. Go back to sleep." CEH