For humans, recognising ourselves in a mirror feels completely natural. But in the animal kingdom, this ability is considered extremely rare and is often linked to self-awareness and advanced intelligence. Scientists usually study this through the “mirror test,” where researchers place a visible mark on an animal’s body in a spot it can only see in a mirror. If the animal notices the reflection and tries to inspect or touch the mark, it may suggest self-recognition.
Beluga whale: Belugas have recently drawn scientific attention for behaviours linked to self-recognition. Researchers observed these whales reacting differently to mirrors compared to ordinary objects, adding them to the growing discussion about intelligent marine mammals. Known for their playful personalities and communication skills, belugas are often called the “canaries of the sea” because of their vocal sounds.
Chimpanzee: Chimpanzees were among the first animals to successfully pass the mirror test. Researchers observed them using mirrors to inspect parts of their bodies they normally could not see, suggesting a strong level of self-awareness.
Dolphin: Dolphins are widely considered among the most intelligent animals on Earth. Studies found that they spend extra time examining marks placed on their bodies while looking into mirrors, indicating they may understand that the reflection belongs to them.
Asian elephant: Elephants are known for their emotional intelligence and memory. In mirror experiments, some Asian elephants used their trunks to investigate marks on their heads after seeing their reflection.
Orca: Also known as killer whales, orcas belong to the dolphin family and display highly complex social behaviour. Some studies suggest they may also possess mirror self-recognition abilities.
Bonobo: Closely related to chimpanzees, bonobos have also shown signs of recognising themselves in mirrors. Their advanced social interactions and emotional awareness continue to fascinate scientists.
Magpie: One of the most surprising entries on the list, magpies became the first bird species believed to pass the mirror test. Researchers found that they attempted to remove stickers placed on their bodies after seeing themselves in a mirror.
Gorilla: Results involving gorillas have been mixed, but some individuals have demonstrated behaviours associated with self-recognition, especially when raised in close interaction with humans.
