Ancient virus may be protecting the human placenta

Re:Ancient virus may be protecting the human placenta by _Microft on Monday November 28, 2022 @03:57PM (#33779515)

> About 30 million years ago, a virus infected our primate ancestors and one of its genes got trapped in their genomes.

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Re:Ancient virus may be protecting the human placenta by chatmasta on Monday November 28, 2022 @06:10PM (#33781213)

So at +/- 1 million, that's a range of 29-31 million, or three million years. That still seems imprecise, to be fair.

For any virologists out there, is this question similar to estimating the date of a Git commit? Or maybe it's similar to finding the nearest tag to a given commit, where a "tag" is some external reference point for a known age (like a fossil or ice core)?

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