Definition

Noun: 1. An evolutionary process: A biological phenomenon where the development of an organism is slowed or delayed, resulting in the retention of juvenile physical or behavioral traits into the adult stage of the species.

Usage

This term is used primarily in the fields of evolutionary biology, zoology, and developmental biology to describe a specific pattern of evolution.

Examples

• The axolotl is a classic example of neoteny, as it retains its larval gills and aquatic lifestyle throughout its life.
• Some scientists theorize that human evolution involved a degree of neoteny, such as the retention of curiosity and playfulness into adulthood.
• The study focused on the role of neoteny in the domestication of dogs, leading to traits like floppy ears and social tolerance.

Advanced Usage

• Neotenous (adjective): Describing an organism or trait that exhibits neoteny.
  • The researcher identified several neotenous features in the fossil record.

Variants and Related Words

• Paedomorphosis: A broader term encompassing evolutionary processes, including neoteny, where adult organisms retain traits previously seen only in juveniles.
• Juvenilization: A less technical term sometimes used to describe the retention of youthful characteristics.

Synonyms

• Paedomorphosis (in a specific context)
• Evolutionary retardation (archaic/less common)

Antonyms

• Peramorphosis: An evolutionary process where development is accelerated or extended, leading to adults with "overdeveloped" traits not seen in ancestral juveniles.

Noun

1. an evolutionary trend to be born earlier so that development is cut off at an earlier stage and juvenile characteristics are retained in adults of the species