Cran's originally-titled tumblr

bibidebabideboo:

mappeal:

fascinating creatures :

Another measure of intelligence: you can count neurons. The common octopus has about 130 million of them in its brain. A human has 100 billion. But this is where things get weird. Three-fifths of an octopus’s neurons are not in the brain; they’re in its arms.

This entire article is fascinating. Well worth the read.