Research published last month proved that orca, or killer, whales have the ability to mimic the complexities of human speech. Josep Call, professor in evolutionary origins of mind at the University of St Andrews, was a co-author of the study. He said: “I think here we have the first evidence that killer whales may be learning sounds by vocal imitation.”
Dr Adriano Lameira of Durham University led a team of researchers in 2016 that proved orangutans have the ability to control their vocal range, communicating in a way not dissimilar to humans. The study centred on an ape named Rocky, from Indianapolis zoo, who mimicked the speech of his caretakers in exchange for food.
In 2012, Angela Stoeger-Horwath of the University of Vienna, captured footage of Koshik, a male elephant from Korea, communicating in a distinctly human way. Koshik would place his trunk into his mouth to create a vocal tract that facilitated the expression of pitches and formants similar to that of human speech.
Researchers at the National Marine Mammal Foundation in San Diego were taken aback in 1984 when they heard what sounded like people talking inside a whale tank. In fact, the human-like calls were coming from a captive male beluga whale named Noc. A study was subsequently conducted that proved the rhythms recorded from Noc’s wails were close in pattern and tonality to that of human speech.
Dr Irene Pepperberg, an animal psychologist from the University of Harvard, conducted a 30-year study of Alex, an African grey parrot. Before the research, it was widely assumed in the scientific community that since birds did not possess a primate brain, they would be incapable of performing complex mental tasks. Although Dr Pepperberg said that Alex wasn’t necessarily able to use language, she showed he could engage in two-way forms of communication and expression with humans.