The number series also has a unique origin indicated by the number 0.

"The geographical distribution of each tool type on the island suggests a unique origin, rather than multiple independent inventions".

Besides a rich cultural history, the Buttes also have a unique geological origin.

A very uncommon surname for Chinese, however, has unique origins.

These are of unique evolutionary origin within the Diptera.

The unique origin of the Opsikion was reflected in several aspects of the theme's organization.

The Sterns argued that they should be given sufficient time to tell the child about her unique origins.

However, they have a unique origin in the early history of the Cape Colony.

All around her the citadel was breathing, churning the present into the past by the alchemy of its unique origin.

Forensic botany can often establish whether plant fragments found on a victim or defendant have a unique origin.