countershading

Gradient concealment technique

Countershading is a form of natural camouflage in which an animal's coloring is darker on top and lighter underneath.

This pattern counteracts the shadow cast by overhead light, making the animal appear flatter and less visible to predators or prey.

Many fish, birds, and mammals exhibit countershading: The shark's dark dorsal surface and pale belly are classic countershading.

zoology

gradient

Rate of change across space

ventralOf the belly
dorsalOf the back
pelagicOf the open sea

shark · penguin · dolphin · whale · gazelle · antelope · deer · catfish · mackerel · cuttlefish

camouflage

concealment

Act of hiding something

blendingCombining into uniformity
disguiseIdentity-concealing alteration
stealthSecret, undetected movement

invisibility · ambush · deception · mimicry

evolution

natural selection

Differential reproductive success

survival strategyMethod ensuring continued existence
pigmentationNatural tissue coloring
selective pressureInfluence favoring certain traits

fitness · protective coloration

art

illustration

Picture explaining something

wildlife paintingArtwork depicting wild animals
natural historyStudy of organisms and environments
scientific illustrationAccurate visual for research

taxidermy · nature photography · realism

military

ghillie suit

Leafy camouflage garment

fieldcraftOutdoor operational expertise
reconnaissanceInformation-gathering before action

Opposites

camouflage strategy

countershadingwarning coloration

Conspicuous hues signaling unpalatability

transparency · startle display · bioluminescence

Family

shade, shadow, counter, shaded, shading, counterpart, counteract, unshaded, overshade

Familiarity: Top 1,000,000
Profile: Used worldwide · Timeless · Rated G