Toxic Berries

The Toxic Berries discovery can be invented by playing the Inspect card on toxic berry bushes. This will allow humans to learn about the poison in the toxic berries and causes them to avoid eating them unless they need it for some kind of remedy.

Toxic Berries can be discovered with the base IQ (40) and will increase humanity's IQ by 3.

After medication is researched, humans can be seen eating toxic berries for food and taking medication.