Original sentence: Her 1990 book Scars of Evolution received some favorable reviews but the thesis was subject to scathing criticism from the anthropologist John Langdon in 1997, who characterized it as an "umbrella hypothesis" and argued that the hypothesis is not more parsimonious than simply rejecting the hypothesis.This proposal was built upon by Elaine Morgan, who added feminist criticism in opposition to the male image of the "mighty hunter" being presented in popular anthropological works by Raymond Dart and others
Edited sentence: A 2016 research programme conducted by Tom Brenna (then at Cornell University), with the help of Judy St Leger at San Diego Seaworld, compared the chemistry of vernix on human neonates and samples of a vernix-like substance on California Sealion pups.Her 1990 book Scars of Evolution received some favorable reviews but the thesis was subject to scathing criticism from the anthropologist John Langdon in 1997, who characterized it as an "umbrella hypothesis" and argued that the hypothesis is not more parsimonious than simply rejecting the hypothesis.. Most of the criticisms of Langdon have been refuted.They established that its molecular composition is comparable to human vernix, being rich in both branch chain fatty acids (BCFAs) and squalene.This proposal was built upon by Elaine Morgan, who added feminist criticism in opposition to the male image of the "mighty hunter" being presented in popular anthropological works by Robert Ardrey and others