On average, there's 300 billion neurons in the octopus brain.
129
Music is as addictive to the brain as sex and drugs.
27
An ant brain has about 250 000 brain cells. A human brain has 10,000 million so a colony of 40,000 ants has collectively the same size brain as a human.
118
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Starfish don't have brains.
132
The elephant brain weighs about 6,000g.
274
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65