Guiness Book of World Records
Twelve
sextuplets.
Five babies born at the same time are called quintuplets.
Six babies born at the same time, all to one mother, are called sextuples. :)
For a human? There's no such thing. The most to come out of one mother without dying or killing the mother is 8.
The most babies that have been known to haven given birth at once is 9 babies. But the most children in one pregnancy (with fertilization) is 15, but none of them survived. Without fertilization though, the most kids in one pregnancy is 12, but none survive sadly.
Quadruplets
Three babies born to the same mother at the same time are called triplets.
They are called quintuplets.
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