Preston Dennett: examined by extraterestrials
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61-69, M
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Tastyfrzz · 61-69, M
So, 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.
Mud puppies.
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.
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.
Mud puppies.
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.
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.