This handsome skull belongs to an iguana.
These all belong to water monitors.
And this one belongs to a tegu.
The tegu’s skull is missing a hole!
Those little openings on the top of the monitors’ heads and the iguana’s is where the pineal eye is located. The pineal eye can distinguish between light and dark, and helps with thermoregulation. But tegus don’t have it! They lost their pineal eye sometime during the course of their evolution- which is evidence of how even though they might look a bit like monitors, they really aren’t that closely related!
One of the best and most imaginative books ever written about science and science communication was “After Man: A Zoology of the Future” (1981), which guessed, based on what we know about the laws of evolution, what the future would look like millions of years from now when humans are extinct.
I would look at this one in the library, and just read it for hours. My favorite is the idea the humble rat would diversify into a thousand species, including huge predators, and that eventually, an island would be settled by flying bats, who then diversify into dozens of roles, including ground-walking echolocation predators.
vor dem Harz photos
Waaaaaaa…….nooooo
🍯🍃🍶🌾
Tumblr for some reason is not letting me publish asks but anyway…
The fuzzy fur-like stuff that covers a lot of moths is actually modified scales, like the scales on their wings, made of a substance called chitin, rather than keratin as in mammal hair. Chitin also makes up their exoskeleton. Wing scales are used to absorb heat, possibly to assist with flight, and to display colors/patterns as defense/camouflage or to attract a mate. The fuzz on their body is thought to muffle the sonar of predatory bats as well as keep them warmer in the chilly night air. Unlike mammal hair, though, these scales are not continually growing and cannot be replaced if lost or damaged.
Here’s a fun extreme macro photo of a sunset moth’s wing scales and longer modified hair-like scales:
Photo via Johan J.Ingles-Le Nobel
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Goblincore:
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Dragoncore:
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Crowcore:
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Cottagecore:
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Farmcore:
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Dirtcore:
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Vulture culture:
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Meadowcore:
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Honeycore:
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Grandmacore:
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Naturecore:
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Forestcore:
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Earthcore:
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Witchcore:
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Bogcore:
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Mosscore:
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Fairycore:
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Techcore:
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Futurecore:
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