Sentence examples for extinct over time from inspiring English sources

Paleontologists distinguish between background extinction, the steady rate at which species disappear through geologic time, and mass extinctions, the episodic events in which large numbers of species become extinct over time spans short enough to appear almost instantaneous on the geologic scale.

Different woolly mammoth populations did not die out simultaneously across their range, but gradually went extinct over time.

The ancestral population may have shifted geographically, it may have become extinct over time, or it may have been omitted during sampling.

"People change over time.

Dog rabies epizootics in the Americas seem to be characterized by the circulation of multiple geographic or temporal lineages that have either become extinct or merged over time (2, 3, 8, 10, 21, 22, 32 – 32 ).

For all cases examined, it is always the case that the species with a smaller value of r survives, while the other goes extinct over a very long time scale relative to the average lifetime of replicators (d-1) (data not shown).

This does not mean that climate worsening drove Neanderthals extinct, yet it suggests extinction risk for the latter markedly increased over time, towards its actual extinction date.

4b Natural selection results in a decrease of variation over time; some traits go extinct.

As a result, each species changes over time and eventually becomes extinct or speciates.

Over time, most populations went extinct, allowing the genes of only a few groups to proliferate, further erasing genetic diversity.

While the Tiberian, Babylonian, and Palestinian reading traditions are extinct, various other systems of pronunciation have evolved over time, notably the Yemenite, Sephardi, Ashkenazi, and Samaritan traditions.