dimorphism

Existing in pairs

Dimorphism is the occurrence of two distinct forms within a species.

Sexual dimorphism describes physical differences between males and females—peacocks with elaborate plumage, peahens plain brown; male lions with manes, females without.

The term extends to plants, minerals, and chemicals that exist in two different forms: The dimorphism of carbon produces both graphite and diamond.

crystallographic

polymorph

Entity assuming multiple forms

allotropyElement existing in multiple forms
latticeOpenwork of crossed strips
hexagonalSix-edged polygon's form

carbon · graphite · diamond · calcite · aragonite · sulfur · mineralogy

sexual

male

Sperm-producing sex

femaleOffspring-bearing sex
plumageBird's complete feather coat
antlersBranching cervid headgear

coloration · ornamentation · peacock · peahen · lion · mane · tusks · horns · dewlap · comb

biological

morphs

Changes form gradually

phenotypesObservable organism characteristics
bimodalHaving two modes
dichotomyDivision into contrasting parts

variation · expression · differential · genotypes · castes · worker · soldier · queen · aphids · developmental

contrast

asymmetry

Absence of balanced form

disparityMeasurable difference between things
differenceWay things contrast
divergenceSeparation from common origin

dichotomy · polarity · inequality · binary

evolutionary

fitness

Good physical shape

adaptationFitting to new conditions
speciationFormation of distinct species
divergenceSeparation from common origin

intersexual · Darwin · Wallace

dimorphism

polymorph

male

morphs

asymmetry

fitness

dimorphism

Opposites

Categories

Family