It turns out apes and monkeys possess vocal membranes in their throats that humans lack. Scientists suspect these structures ...

Researchers recorded and studied the calls of various primate species, including the black and gold howler monkey (Alouatta caraya), tufted capuchin (Sapajus apella), black-capped squirrel monkey ...

Monkeys are the world’s best yodellers, according to new research. Rather than Austria or Switzerland, scientists say the ...