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Top 10 Animals That Evolved Don’t Need Eyes


When you stop believing it for a flash, there are literally tons of animals that don’t have eyes. Jellyfish, Hydras, Sea Urchins, Sea Cucumbers, worms, and lots of more critters never evolved a way of looking around, and instead, use other means to form their way within the world. Other than those animals, there are some that either had eyes at one point in their evolutionary history, and lost them over time, or they evolved eyes that were later rendered incapable of seeing. Whatever their evolutionary niche, these ten interesting animals lost their ability to ascertain the planet around them but found innovative ways of surviving.

1.Blind Legless Lizard – Dibamus Dalaiensis

A new species of lizard was discovered in 2011, and because the name suggests, it’s completely blind. These interesting animals have a number of the characteristics of snakes but fall into the Dibamidae family of blind skinks. Though they appear similar, they need external ears, and counting on the gender, they’ll have small protuberances where legs would normally be located. The new species was discovered in Cambodia and marks the primary time an animal of its kind was located within the Southeast Asian country . The Blind lizard of Cambodia evolved to not need eyes, because it spends nearly its entire life burrowing through the soil. consistent with one researcher, when it involves eyes, “Those adaptations are simply a waste of energy when you’re working your way through underground tunnels.” Legless lizards evolved before snakes, and lots of species, including this newly discovered one, are threatened. D. dalasis, as far as any researcher is aware, lives during a small area on one mountain in Cambodia, which is under threat from logging and other industries.

2.Brazilian Blind Characid – Stygichthys Typhons

In the caves of Minas Gerais, Brazil, lives the Brazilian Blind Characid, a species of cave-adapted fish, which has evolved to not need eyes, or pigmentation. Like other species of tetra, they’re small fish, measuring up to 1.8″ (4.6 cm), and live a comparatively solitary life in their cave ponds. within the wild, they’re becoming rarer, due, in large part, to a discount within the local water level , which has resulted within the dehydration of various ponds and streams. Despite their decline within the wild, they’re sometimes kept in aquariums as pets, where they’re prized for his or her unique features. The fish was initially discovered within the 60s and was later rediscovered within the early 2000s. Since that point , only a limited population has been studied in their native habitat, also as in laboratories, where their behavior might be monitored. they need no reaction to light, and there are not any visible eyes, where they might normally be located in other tetra species. they’re the last remaining species of Stygichthys, and there was once a surface variant, but habitat loss has likely resulted in its extinction. The Brazilian Blind Characid is restricted to a 25km-long aquifer and is threatened by habitat loss thanks to a lowering of the local water level .

3.Kentucky Cave Shrimp – Palaemonias Ganteri


The Kentucky Cave Shrimp may be a freshwater species of troglobite shrimp found within the caves of Barren, Edmonson, Hart, and Warren Counties, Kentucky. The species has evolved without eyes of any kind, and its shell lacks pigment, making it almost entirely transparent. They live exclusively in underground streams found in caves and may be found mostly in Mammoth Cave Park. They survive within the low energy environment off of the sediment that washes into the cave via the movement of groundwater. Within the sediment, they find an upscale bounty of protozoans, fungi, algal cells, and other organic materials. Most species of shrimp possess small eyestalks topped with ocular receptors of some type, but the Kentucky Cave Shrimp evolved without these and has no way of sensing light. they appear very similar to Ghost Shrimp, a standard species found in many aquariums. Unlike Ghost Shrimp, the Kentucky Cave Shrimp has threatened thanks to its limited range. It only occupies a little area within Kentucky and is suffering therein area thanks to poor water quality resulting from a deterioration via groundwater contamination. Fortunately, conservation efforts are underway to make sure this strange animal doesn’t disappear from the planet.

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