Explore further Squid could thrive under climate change Citation: Why Are Pygmies Short? (2007, December 21) retrieved 18 August 2019 from https://phys.org/news/2007-12-pygmies-short.html A Baka pygmy dance group pictured with US Ambassador R. Niels Marquardt in Lobeke National Park, Cameroon, in 2006. Source: US Federal Government. The question is controversial. Traditional explanations attribute pygmies’ small stature to minimizing caloric requirements and walking in dense forests. However, a new study by researchers at the University of Cambridge suggests that there are some problems with this explanation, and offers an alternative hypothesis.