Midsagittal sections through chimpanzee (left) and human (right) head.... | Download Scientific Diagram
Monkey speak: Macaques have the anatomy, not the brain, for human speech
Why apes can't speak like humans - CBS News
Why humans have more voice control than any other primates
Listen: Singing Apes and More Animal Musicians
Human Laughter Echoes Chimp Chuckles | WIRED
Listening to the language of apes - BBC News
Losing parts of our voice box may have helped humans evolve to speak | New Scientist
From Grunting To Gabbing: Why Humans Can Talk : NPR
Your simple throat is the reason you don't sound like a chimp | Science | AAAS
Big monkey voice 'means less sperm' - BBC News
Why monkeys can't talk—and what they would sound like if they could | Science | AAAS
Deep calls or big balls? Howler monkeys are either all mouth, or all trousers
If parrots can talk, why can't monkeys? | Science | EL PAÍS English
Monkeys have vocal chords to speak, lack wired brain
How quirk of primate evolution gave humans the voice apes lack | Evolution | The Guardian
Monkeys Could Talk, but They Don't Have the Brains for It - The New York Times
Monkey vocal tracts are speech-ready | Science Advances
Examples of Howler Monkey Vocalizations and Vocal Apparatus (A and B)... | Download Scientific Diagram
Body size and vocalization in primates and carnivores | Scientific Reports
