FILE - In this Wednesday, Sept. 29, 2015 file photo, Sahara, a rare red-haired female Hamadryas Baboon holds 3 weeks old dark-furred baby in the Ramat Gan Safari Park near Tel Aviv, Israel. A new study in France shows that baboons can make human-like vowel sounds, and its authors say the discovery could help scientists better understand the evolution of human speech. The study was published in the journal Plos One on Wednesday Jan. 11, 2017 by a team of scientists. FILE - In this Wednesday, Sept. 29, 2015 file photo, Sahara, a rare red-haired female Hamadryas Baboon holds 3 weeks old dark-furred baby in the Ramat Gan Safari Park near Tel Aviv, Israel. A new study in France shows that baboons can make human-like vowel sounds, and its authors say the discovery could help scientists better understand the evolution of human speech.