12 Things you learned in school that have since been proven wrong

Ostriches hide by putting their heads in the sand

This myth could also have arisen from a couple of other ostrich behaviors. For example, when ostriches eat plants along the ground, they could easily look like they've buried their heads in the sand, especially from a distance. Likewise, ostriches often lie down flat on the ground when they feel threatened. From a distance, all that's visible is their large body, leading some to think that the rest may be buried.