page_title: Blind fish
section_title: Bony fishes
hierarchical_section_title: Blind fish / Blind fish species / Bony fishes
caption_attribution_description: Deutsch&#x3a;&#32; Astyanax mexicanus, Characidae, Blinder Höhlensalmler; Staatliches Museum für Naturkunde Karlsruhe, Deutschland.English&#x3a;&#32; Astyanax mexicanus, Characidae, Blind Cave Tetra; Staatliches Museum für Naturkunde Karlsruhe, Germany.Français&#x202f;&#x3a;&#32; Un tétra aveugle (Astyanax mexicanus, Characidae) en captivité. Photo prise au Staatliches Museum für Naturkunde Karlsruhe en Allemagne.
context_page_description: A blind fish is a fish without functional eyes. Most blind fish species are found in dark habitats such as the deep ocean, deep river channels and underground.
caption: Anoptichthys jordani
exif: {"Image Make": "Canon", "Image Model": "Canon EOS 500D", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Elements 7.0 Windows", "Image DateTime": "2011:05:22 07:51:52", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "240", "GPS GPSVersionID": "[2, 2, 0, 0]", "Image GPSInfo": "1008", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1122", "Thumbnail JPEGInterchangeFormatLength": "5127", "EXIF ExposureTime": "1/30", "EXIF FNumber": "18", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "100", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:05:21 10:13:54", "EXIF DateTimeDigitized": "2011:05:21 10:13:54", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "5", "EXIF ApertureValue": "67/8", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Spot", "EXIF Flash": "Flash fired, compulsory flash mode", "EXIF FocalLength": "45", "EXIF SubSecTime": "83", "EXIF SubSecTimeOriginal": "83", "EXIF SubSecTimeDigitized": "83", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "4593", "EXIF ExifImageLength": "2949", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "976", "EXIF FocalPlaneXResolution": "792000/149", "EXIF FocalPlaneYResolution": "3168000/593", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Manual", "EXIF SceneCaptureType": "Standard"}