Self-awareness in a small passerine - Great tits (Parus major) perform the mark test
Cognition is one of human kind’s most important features in our own opinion. The more we know about the cognitive abilities of different species the more we know about how cognition has evolved. Self-awareness is a mental trait associated with high levels of cognition and something previously considered to be exclusive to humans and possibly apes. The most common test of self-awareness is a test o