Who are the grays?
I am proposing a hypothesis that what people see as being gray aliens are in fact an advanced terestrial amphibian. We call their lesser cousins,"mud puppies". I got this idea from a couple of things. Skin colonization, smell, how the excrete waste, number of fingers, and the lack of navels.
If they are gray in color that would be like a dolfin or a shark. It sure sounds like they are aquatic in origin. Maybe like Amphibians.
Best fit being a bipedal mud puppy.
Many frog species have strong odors, and in some cases, these odors contain thiols, which are sulfur-containing compounds. These scents can serve various purposes, including sexual differentiation, recognition of conspecifics, and even defense.
Many aquatic and semi-aquatic amphibians excrete a portion of their nitrogenous waste, including ammonia, through their skin. Some species, like the mudpuppy, rely heavily on their skin for ammonia excretion, while others, like the African clawed frog, utilize the skin for both osmoregulation and nitrogen excretion. Terrestrial amphibians, however, primarily excrete nitrogenous waste in the form of urea, relying more on their kidneys for excretion.
Elaboration:
Ammonia Excretion:
Aquatic and semi-aquatic amphibians like salamanders, newts, and frogs, particularly in their larval stages, often excrete ammonia through their skin. This is because ammonia is highly toxic, and in an aquatic environment, it can be quickly diluted and transported away from the animal's body.
Urea Excretion:
Terrestrial amphibians, which spend more time on land, have adapted to conserve water by converting ammonia into urea, a less toxic compound, which is then excreted by the kidneys.
Osmoregulation and Skin Permeability:
Amphibians, especially those living in or near water, have permeable skin that allows them to absorb water directly from their environment. This permeability also aids in gas exchange (cutaneous respiration).
Cutaneous Respiration:
Some amphibians, like the hellbender salamander, rely heavily on their skin for oxygen uptake and carbon dioxide excretion. The skin in these species has a unique vasculature that facilitates gas exchange.
Toes:
Unlike most salamanders that have five toes on each hind foot, mudpuppies have four toes on both their front and hind feet.
Tail:
Their tail is laterally compressed, giving it a paddle-like shape, which aids in swimming.
Coloration:
They are typically gray to rusty brown with darker spots or blotches on their backs.
Courtship and Mating:
Mudpuppies mate in the fall, though eggs are not laid until the following spring.
Males seek out females in shallow water, often gathering in sheltered areas under rocks or logs.
The male deposits a spermatophore, a small packet of sperm, on the substrate.
2. Internal Fertilization:
The female picks up the spermatophore with her cloaca and stores it in a specialized gland called a spermatheca.
The spermatophore is stored until fertilization takes place, typically just before the female lays her eggs in the spring.
3. Egg Laying and Nesting:
In the spring, females excavate nest cavities, often under rocks or logs, to provide a sheltered environment for their eggs.
The female hangs 18 to 180 eggs from the ceiling of the nest cavity.
The eggs are typically between 5 and 11 mm in diameter.
4. Incubation and Hatching:
The eggs develop for 1 to 2 months, depending on the water temperature.
The female guards the eggs and nest until they hatch.
Once hatched, the larvae are about 2.5 cm long.
Size:
Mudpuppies can grow to be quite large, reaching lengths of up to 48 cm (19 inches).
Mudpuppies, specifically the common mudpuppy (Necturus maculatus), have been around for a long time, but their exact evolutionary history is not fully understood. The family Proteidae, which includes the mudpuppy, has a fossil record that extends back to the Late Cretaceous period. This means they have been around for at least 66 million years,
It sure sounds like that is what the grays are. I propose that after the dinosaurs were wiped out the little fellows that survived in swamps and marshes suddenly found themselves to be the top of the food chain except in the water so that pushed them to start living on the land and exploring. Over time their tails receded like humans' did but they were still stuck with four fingers. They saw the stars and like us, developed astronomy and agriculture. Eventually they created metallurgy. Millions of years passed and they slowly learned advanced physics. Humans were a new creature that had some advantages so they played with different forms of them to see if they could be their servants and eventually, their carriers. The climate was devastated by several severe volcanic eruptions and ice ages so it is likely that pushed them back into the oceans and some to the stars. That is why we see different sizes and versions of them. The climate change/ warming of the planet may actually be terraforming on their part as they try to get the planet back to how it was.
One other thing to consider is that these beings do not seem to have experienced bigotry and misogyny like humans have due to their common appearance. Their brains likely have a different limbic system.
If they are gray in color that would be like a dolfin or a shark. It sure sounds like they are aquatic in origin. Maybe like Amphibians.
Best fit being a bipedal mud puppy.
Many frog species have strong odors, and in some cases, these odors contain thiols, which are sulfur-containing compounds. These scents can serve various purposes, including sexual differentiation, recognition of conspecifics, and even defense.
Many aquatic and semi-aquatic amphibians excrete a portion of their nitrogenous waste, including ammonia, through their skin. Some species, like the mudpuppy, rely heavily on their skin for ammonia excretion, while others, like the African clawed frog, utilize the skin for both osmoregulation and nitrogen excretion. Terrestrial amphibians, however, primarily excrete nitrogenous waste in the form of urea, relying more on their kidneys for excretion.
Elaboration:
Ammonia Excretion:
Aquatic and semi-aquatic amphibians like salamanders, newts, and frogs, particularly in their larval stages, often excrete ammonia through their skin. This is because ammonia is highly toxic, and in an aquatic environment, it can be quickly diluted and transported away from the animal's body.
Urea Excretion:
Terrestrial amphibians, which spend more time on land, have adapted to conserve water by converting ammonia into urea, a less toxic compound, which is then excreted by the kidneys.
Osmoregulation and Skin Permeability:
Amphibians, especially those living in or near water, have permeable skin that allows them to absorb water directly from their environment. This permeability also aids in gas exchange (cutaneous respiration).
Cutaneous Respiration:
Some amphibians, like the hellbender salamander, rely heavily on their skin for oxygen uptake and carbon dioxide excretion. The skin in these species has a unique vasculature that facilitates gas exchange.
Toes:
Unlike most salamanders that have five toes on each hind foot, mudpuppies have four toes on both their front and hind feet.
Tail:
Their tail is laterally compressed, giving it a paddle-like shape, which aids in swimming.
Coloration:
They are typically gray to rusty brown with darker spots or blotches on their backs.
Courtship and Mating:
Mudpuppies mate in the fall, though eggs are not laid until the following spring.
Males seek out females in shallow water, often gathering in sheltered areas under rocks or logs.
The male deposits a spermatophore, a small packet of sperm, on the substrate.
2. Internal Fertilization:
The female picks up the spermatophore with her cloaca and stores it in a specialized gland called a spermatheca.
The spermatophore is stored until fertilization takes place, typically just before the female lays her eggs in the spring.
3. Egg Laying and Nesting:
In the spring, females excavate nest cavities, often under rocks or logs, to provide a sheltered environment for their eggs.
The female hangs 18 to 180 eggs from the ceiling of the nest cavity.
The eggs are typically between 5 and 11 mm in diameter.
4. Incubation and Hatching:
The eggs develop for 1 to 2 months, depending on the water temperature.
The female guards the eggs and nest until they hatch.
Once hatched, the larvae are about 2.5 cm long.
Size:
Mudpuppies can grow to be quite large, reaching lengths of up to 48 cm (19 inches).
Mudpuppies, specifically the common mudpuppy (Necturus maculatus), have been around for a long time, but their exact evolutionary history is not fully understood. The family Proteidae, which includes the mudpuppy, has a fossil record that extends back to the Late Cretaceous period. This means they have been around for at least 66 million years,
It sure sounds like that is what the grays are. I propose that after the dinosaurs were wiped out the little fellows that survived in swamps and marshes suddenly found themselves to be the top of the food chain except in the water so that pushed them to start living on the land and exploring. Over time their tails receded like humans' did but they were still stuck with four fingers. They saw the stars and like us, developed astronomy and agriculture. Eventually they created metallurgy. Millions of years passed and they slowly learned advanced physics. Humans were a new creature that had some advantages so they played with different forms of them to see if they could be their servants and eventually, their carriers. The climate was devastated by several severe volcanic eruptions and ice ages so it is likely that pushed them back into the oceans and some to the stars. That is why we see different sizes and versions of them. The climate change/ warming of the planet may actually be terraforming on their part as they try to get the planet back to how it was.
One other thing to consider is that these beings do not seem to have experienced bigotry and misogyny like humans have due to their common appearance. Their brains likely have a different limbic system.
61-69, M