anagenesis

[an-uh-jen-uh-sis]

noun

1. Biology.,  the progressive evolution of a species.

2. Physiology.,  the regeneration of tissue.

Other Word Forms

• anagenetic adjective
• anagenetical adjective

Word History and Origins

Origin of anagenesis¹

From New Latin, dating back to 1875–80; ana-, genesis

Example Sentences

She found that some species thought to have evolved through "anagenesis" -- when one slowly turns into another, but lineage doesn't split -- may have actually "budded": when a new species branches off from an existing one.*

Read more on Science Daily

Notes: *For example, the hominin species Australopithecus afarensis was believed to have speciated via anagenesis from Australopithecus anamensis.

Read more on Science Daily

They found that anagenesis increases with island isolation, and cladogenesis increases on larger, more isolated islands.

Read more on Nature

A new tyrannosaur with evidence with evidence for anagenesis and crocodile-like facial sensory system.

Read more on Scientific American

One of the most notable naturalists of our time has insisted on the opposition of two orders of phenomena observed in living tissues, anagenesis and katagenesis.

Read more on Project Gutenberg