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In the darkness of the deep sea, where sunlight can barely reach, a single photon of light can blow an animal's cover.
Scientists have now discovered at least 16 species of ultra-black fish, each equipped with specialised skin that allows them to evade detection while hunting or hiding in the dark.
Absorbing 99.95 percent of all photons, this blacker-than-black exterior creates a cloak of invisibility against the ocean's dim backdrop.
Even under a harsh spotlight, these creatures appear as mere silhouettes.
All of these creatures had an ultra-black exterior that reflected less than 0.6 percent of available light, and 16 species reflected less than 0.5 percent. What's more, this ultra-black skin was found across the body, and in the near-complete darkness of the deep, this cloak of darkness probably evolved to absorb bioluminescent light, emitted from prey or predators
This low reflectance puts deep-sea fishes on par with the blackest known animals," the authors write, "surpassing the darkness of ultra-black butterflies (0.06%–0.5% reflectance) and equaling the blackest birds of paradise (0.05%–0.31% reflectance)."
In fact, the black skin of these fish is nearly on par with Vantablack, which absorbs 99.96 percent of light
In one species, this ultra-black skin was actually found around the gut, and this might be used to hide the glow of a recent bioluminescent snack.
Effectively what they've done is make a super-efficient, super-thin light trap," Osborn explains.
"Light doesn't bounce back; light doesn't go through. It just goes into this layer, and it's gone."
originally posted by: dug88
a reply to: theatreboy
I mean yeah, they kinda look like horrifying nightmare fuel. The kind of thing you wake up to in the middle of the night as you hear a soft slithering in your room and nothing but a quick glance of shadow against shadow moving until you turn your head and see that row of teeth gleaming at you out of the darkness as it smiles and opens its mouth revealing a gaping chasm of darkess.
Definition of photosynthesis. : synthesis of chemical compounds with the aid of radiant energy and especially light especially : formation of carbohydrates from carbon dioxide and a source of hydrogen (such as water) in the chlorophyll-containing cells (as of green plants) exposed to light
Why is light important to animals?
The energy from the sun is transferred from plants to animals when animals eat the plants. Animals also benefit from the sun's effect on their bodies, because sunlight on skin produces vitamin D, which is important in the formation of strong bones. Animals also get vitamin D by eating plants.
originally posted by: anticitizen
a reply to: AutomateThis1
i think it would be sufficient if a lifeform with the brainpower between higher apes and humans has the ability to merge colourwise with the background as octopuses and others already do.