The penguin that brays like a donkey: DNA unravels the mystery

Scientists have finally unraveled the mystery behind an African penguin that emits an unusual call, similar to the braying of a donkey. The animal, housed in a rehabilitation center, had long intrigued researchers due to its atypical vocalization compared to its conspecifics.

Genetic analyses conducted on the penguin identified a rare mutation responsible for this unique vocal trait. The discovery, reported in the news on October 27, 2026, opens new perspectives in the study of communication and genetic variations in seabirds.

African penguins are an endangered species that primarily lives along the southern coasts of Africa. Like all penguins, they communicate through a variety of vocalizations used for individual recognition, pair bonding, and territory defense. Normally, their calls are described as resembling hoarse cries or squawks.

The discovery of an individual with a radically different call—compared to a donkey's bray—represents an exceptional case in the study of these animals. Researchers, intrigued by this anomaly, decided to investigate the causes through genetic analysis, hypothesizing that it could be due to a spontaneous mutation.

This discovery is not just a zoological curiosity, but contributes to understanding how genetic variations can influence animal behavior, including the complex system of vocal communication. The study of mutations in African penguins takes on particular importance given the vulnerable conservation status of this species.