This spectacular body art has been a way of transporting their ancestral memories through many generations.
But domestication is an arduous process, in which animals must be selected for a particular trait through many generations, by several generations of people.
Woollier sheep and smarter sheep dogs have both been improved through many generations of selective breeding.
Abraham Lincoln died almost 150 years ago, but his name has been passed "forward" through many generations of language users.
Evolution consists of gradual changes passed on through many generations through natural selection acting on variation.
Image caption Should wealth passed down through many generations be taxed more heavily?
It meant that a product, idea, or disease spread through many generations of intimate sharing.
Surely, she's been through many generations of tech since.
Most starting points end up as static patterns after bubbling through many generations.
Some recipes are highly coveted family secrets handed down through many generations.
To escape the clutches of belief systems reinforced through many generations, is indeed, 'breaking the matrix'.
