underparts
Underneath side plumage
The underparts are the underside or lower surface of an animal's body—belly, chest, and inner legs.
The term appears most often in descriptions of birds and mammals: The robin has orange-red underparts, The snake's underparts are pale yellow.
Contrasts with upperparts.
Of the belly
- abdomenTorso's lower cavity
- thoraxCentral body cavity
- bellyFront midsection
- chestRibcage region or strongbox
groin · pelvis · torso · underbelly · undersurface · lower body · soft tissue
Front midsection
- breastUpper front torso
- ventOpening for airflow
- undertailFeathers under tail
- covertsConcealing undergrowth or plumage
plumage · feathers · markings · streaking · barring · coloration · identification · birding
Animal body hair
- coatOuter garment or layer
- markingsIdentifying visual features
- colorationSurface hue arrangement
- countershadingCamouflage via tonal gradient
camouflage · mammal · identification · species · pale · white · lighter
ventral
Of the belly
chest · groin · pelvis · torso · underbelly · undersurface · lower body · soft tissue
belly
Front midsection
coverts · plumage · feathers · markings · streaking · barring · coloration · identification · birding · ventral
fur
Animal body hair
- coatOuter garment or layer
- markingsIdentifying visual features
- colorationSurface hue arrangement
countershading · camouflage · mammal · identification · species · pale · white · lighter
underpartsupperparts
Top of body
dorsum · back · topside · upper surface · crown