"The suspicious claim seems to have originated in a flapper-era study conducted by a biologist named John Bauman."
what is "flapper-era"?
1920's time period era. Flapper dresses were the style of dress women wore during that time.
Bauman took his study on the road, attempting tests at the Philadelphia Zoo and making inquiries as far afield as Chicago and Cincinnati.
what is "took his study on the road"?
traveled around and conducted tests in many different places.
"Thus the number entered the anthropology textbooks and made its way into the talking points of recent primatologists like Jane Goodall and Sue Savage-Rumbaugh."
what is "" made its way into the talking points ?
the information was taken and used in other discussions