• Thumbnail for Counter-illumination
    Counter-illumination is a method of active camouflage seen in marine animals such as firefly squid and midshipman fish, and in military prototypes, producing...
    24 KB (2,579 words) - 02:39, 11 June 2025
  • Thumbnail for Active camouflage
    marine animals such as squid) by counter-illumination, with the use of bioluminescence. Military counter-illumination camouflage was first investigated...
    20 KB (1,757 words) - 04:35, 18 June 2025
  • Thumbnail for Countershading
    counter-illumination, adds the creation of light by bioluminescence or lamps to match the actual brightness of a background. Counter-illumination camouflage...
    37 KB (4,249 words) - 00:43, 24 May 2025
  • Thumbnail for Camouflage
    while the ability to produce light is among other things used for counter-illumination on the undersides of cephalopods such as squid. Some animals, such...
    123 KB (13,526 words) - 07:00, 24 June 2025
  • Thumbnail for Squid
    signalling. Some species are bioluminescent, using their light for counter-illumination camouflage, while many species can eject a cloud of ink to distract...
    68 KB (6,931 words) - 19:43, 14 June 2025
  • Yehudi lights (category Counter-illumination camouflage)
    average brightness of the sky, a form of active camouflage using counter-illumination. They were designed to camouflage the aircraft by preventing it from...
    17 KB (1,783 words) - 00:35, 15 March 2025
  • Thumbnail for Midwater squid
    viewed from below in dim light. The bioluminescence produced provides counter-illumination, a form of camouflage, which helps to break up the squid's outline...
    5 KB (643 words) - 03:24, 3 December 2023
  • Thumbnail for Squaliformes
    for ventral counter-illumination. Etmopteridae possess more complex photophores and utilize bioluminescence for ventral counter illumination as well as...
    14 KB (892 words) - 13:23, 20 March 2025
  • Thumbnail for Philadelphia Experiment
    Navy counter-illumination system for ships List of conspiracy theories Montauk Project Yehudi lights, a prototype US Navy counter-illumination system...
    31 KB (3,447 words) - 20:07, 25 May 2025
  • Thumbnail for Underwater camouflage
    cuttlefish, have multi-layer mirrors made of protein rather than guanine. Counter-illumination through bioluminescence on the underside (ventral region) of the...
    24 KB (2,792 words) - 15:27, 28 August 2024
  • Thumbnail for Bioluminescence
    Bioluminescence (category Counter-illumination camouflage)
    and communication that is prevalent in the pelagic zone such as counter-illumination may not be functional or relevant in the benthic realm. Bioluminescence...
    76 KB (8,249 words) - 20:03, 22 May 2025
  • henshō; K. panjo), also translated as “tracing back the radiance,” or “counter-illumination,” is a Zen Buddhist expression referring to turning attention from...
    22 KB (2,946 words) - 15:39, 19 June 2025
  • Thumbnail for Aircraft camouflage
    During and after World War II, the Yehudi lights project developed counter-illumination camouflage using lamps to increase the brightness of the aircraft...
    39 KB (4,365 words) - 13:30, 4 May 2025
  • Thumbnail for Military camouflage
    War, the Royal Canadian Navy trialled a form of active camouflage, counter-illumination, using diffused lighting to prevent ships from appearing as dark...
    80 KB (8,251 words) - 20:53, 4 May 2025
  • Thumbnail for Vision in fish
    camouflage, is by countershading in the case of epipelagic fish and by counter-illumination in the case of mesopelagic fish. Countershading is achieved by colouring...
    66 KB (7,937 words) - 20:34, 19 May 2025
  • Thumbnail for Ship camouflage
    camouflage project, the Royal Canadian Navy experimented with variable counter-illumination camouflage to match horizon light levels and minimize ships' silhouettes...
    43 KB (5,018 words) - 12:37, 25 May 2025
  • Thumbnail for Multi-spectral camouflage
    Multi-spectral camouflage is the use of counter-surveillance techniques to conceal objects from detection across several parts of the electromagnetic...
    11 KB (885 words) - 22:12, 13 February 2025
  • Thumbnail for Cat senses
    Albinism Animal coloration Aposematism Camouflage Chromatophore Counter-illumination Countershading Crypsis Deimatic behaviour Disruptive coloration coincident...
    19 KB (2,337 words) - 15:40, 26 May 2025
  • Thumbnail for Firefly squid
    night falls. It uses its abilities to sense and produce light for counter-illumination camouflage: it matches the brightness and colour of its underside...
    25 KB (2,807 words) - 11:13, 26 May 2025
  • Thumbnail for Stealth technology
    idea was dropped. Diffused lighting camouflage, a shipborne form of counter-illumination camouflage, was trialled by the Royal Canadian Navy from 1941 to...
    63 KB (7,282 words) - 03:53, 17 June 2025
  • Thumbnail for Bobtail squid
    the amount of light hitting the top of the mantle. This method of counter-illumination is an example of animal camouflage. The organ contains filters which...
    5 KB (522 words) - 02:12, 10 August 2024
  • Thumbnail for Diffused lighting camouflage
    Diffused lighting camouflage (category Counter-illumination camouflage)
    Diffused lighting camouflage was a form of active camouflage using counter-illumination to enable a ship to match its background, the night sky, that was...
    20 KB (2,190 words) - 10:07, 12 February 2024
  • Thumbnail for Marine hatchetfish
    relatives have bioluminescent photophores. The latter allow them to use counter-illumination to escape predators that lurk in the depths: by matching the light...
    6 KB (591 words) - 00:45, 16 November 2024
  • Thumbnail for Viperfish
    by predators, aiding survival. This type of camouflage is called counter-illumination. The presence of photo-microbes in the visceral organs of Chauliodus...
    18 KB (2,042 words) - 21:32, 11 May 2025
  • Thumbnail for Histioteuthis heteropsis
    mainly uses its photophores for two purposes: counter-illumination and concealing prey. In counter-illumination, the squid produces blue light from its photophores...
    14 KB (1,609 words) - 13:24, 10 June 2025
  • Thumbnail for Crypsis
    background is brighter than is possible even with white pigment, counter-illumination in marine animals, such as squid, can use light to match the background...
    14 KB (1,385 words) - 04:07, 2 June 2025
  • Thumbnail for Cranchiidae
    effectively masking the squid's silhouette from predators below. This counter-illumination strategy is a sophisticated form of camouflage in the mesopelagic...
    16 KB (1,584 words) - 04:04, 28 May 2025
  • Thumbnail for HMS Largs
    invention, diffused lighting camouflage. This used dimmable lamps for counter-illumination, camouflage by bringing the brightness of the ship's superstructure...
    9 KB (484 words) - 17:54, 23 June 2024
  • Thumbnail for Krill
    include mating, social interaction or orientation and as a form of counter-illumination camouflage to compensate their shadow against overhead ambient light...
    67 KB (6,541 words) - 20:56, 11 June 2025
  • Thumbnail for Deep sea
    the area of their shadow by lateral compression of the body, and counter illumination via bioluminescence. This is achieved by production of light from...
    35 KB (4,082 words) - 13:45, 22 May 2025