cavefish
Eyeless underground dweller
Cavefish are small freshwater fish adapted to life in caves and underground waters.
Most species have lost their eyes and pigmentation over evolutionary time—features useless in total darkness.
They navigate by lateral line sensitivity to water movement and pressure.
The blind cavefish has become a model organism for studying evolutionary loss of traits.
Below ground or countercultural
- subterraneanBeneath earth's surface
- grottoSmall scenic cavern
- karstEroded soluble rock terrain
- limestoneCarbonate sedimentary rock
aquifer · sinkhole · pool · stream · darkness · freshwater · groundwater · siphon
Lacking organs of vision
- blindLacking the sense of sight
- sightlessUnable to perceive visually
- unpigmentedWithout coloring matter
- translucentPermitting diffused light passage
pale · albino · gills · fins · scales · barbels · sensory · vestigial
Native to one area
- biodiversityRange of life forms
- adaptationFitting to new conditions
- ecosystemInterconnected organisms and surroundings
- detritusLoose waste from decay
invertebrates · guano · bacteria · crustaceans · isopods · amphipods · chemosynthesis · isolation
Scientific study of piscine life
- speleologyScientific study of caves
- geneticsScience of hereditary transmission
- circadianDaily biological cycle
- specimenIndividual for examination
Alabama · Ozark · conservation · endangered · discovery · population · phylogeny · tetra
Rapid oscillating movement
- touchPerceiving through physical contact
- chemoreceptionDetection of chemical stimuli
- navigationDetermining position and course
- mechanoreceptorSensory cell for pressure
smell · taste · pressure · detection · orientation · foraging · sensitivity · compensation
underground
Below ground or countercultural
- subterraneanBeneath earth's surface
- grottoSmall scenic cavern
- karstEroded soluble rock terrain
limestone · aquifer · sinkhole · pool · stream · darkness · freshwater · groundwater · siphon · fissure
eyeless
Lacking organs of vision
- blindLacking the sense of sight
- sightlessUnable to perceive visually
- unpigmentedWithout coloring matter
translucent · pale · albino · gills · fins · scales · barbels · sensory · vestigial · depigmented
endemic
Native to one area
- biodiversityRange of life forms
- adaptationFitting to new conditions
- ecosystemInterconnected organisms and surroundings
detritus · invertebrates · guano · bacteria · crustaceans · isopods · amphipods · chemosynthesis · isolation · speciation
ichthyology
Scientific study of piscine life
- speleologyScientific study of caves
- geneticsScience of hereditary transmission
- circadianDaily biological cycle
specimen · Alabama · Ozark · conservation · endangered · discovery · population · phylogeny · tetra
vibration
Rapid oscillating movement
- touchPerceiving through physical contact
- chemoreceptionDetection of chemical stimuli
- navigationDetermining position and course
mechanoreceptor · smell · taste · pressure · detection · orientation · foraging · sensitivity · compensation
- Cavefishcavefishes
- cave lifeProteus, bats, oilbird, swiftlet, glowworm
- cave dwellersbat, oilbird, troglodyte, Neanderthal, Cro-Magnon