Sheep Must Be Smart
… and locusts must be geniuses.
According to a recent study:
Slime molds, of course, are the most social creatures on Earth (even if they sometimes make logical errors) and must be superintelligent.
The study analysed available data on the brain and body size of over 500 species of living and fossilised mammals. The brains of monkeys grew the most over time followed by horses, dolphins, camels and dogs.
It found that groups of mammals with relatively bigger brains tended to live in stable social groups. The brains of more solitary mammals such as cats, deer and rhino, grew much more slowly during the same period.