Also known as "brain-to-body mass ratio", this term commonly abbreviated as EQ refers to the ratio between the actual or measured brain size of a species to the size predicted in reference to its body mass. Please note that modern humans (Homo sapiens) have an EQ between 6 and 7, meaning that our brain mass is typically 6 times greater than that of a typical mammal.
Did you know that humans have an EQ (encephalization quotient) of 6 to 7? That means our brains are way bigger than what you’d expect for our body size, which helps explain why we’re so good at thinking outside the box.
by Emotional Cruiser October 14, 2025
Get the encephalization quotientmug.