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giant spiders can exist?
Topic Started: Nov 26 2017, 06:21 PM (320 Views)
Cool_Hippo43
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Hippo
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literally
a spider (or a crab)the size of a desk.
this would be possible or is there any biological limitation to the size of spiders?I know about other arthropods there are limitations
but specifically for arachnids and crabs
Edited by Cool_Hippo43, Nov 26 2017, 06:26 PM.
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IIGSY
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A huntsman spider that wastes time on the internet because it has nothing better to do
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Well, there's nothing really specific to spiders or crabs that keeps them from growing large, just the fundamental biology of arthropods.
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Scrublord
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Actually, I read argued that there are some constraints specific to spiders. Namely their relatively thin, weak exoskeletons (as opposed to the tougher ones that insects, myriapods, and crustaceans have) and their inefficient book lungs. This may be why spiders never achieved gigantic size in the Carboniferous even though insects, scorpions, and millipedes all did.
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IIGSY
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Scrublord
Nov 26 2017, 06:35 PM
Actually, I read argued that there are some constraints specific to spiders. Namely their relatively thin, weak exoskeletons (as opposed to the tougher ones that insects, myriapods, and crustaceans have) and their inefficient book lungs. This may be why spiders never achieved gigantic size in the Carboniferous even though insects, scorpions, and millipedes all did.
How does the efficiency of their book lungs compare to scorpions?
Projects
Punga: A terraformed world with no vertebrates
Last one crawling: The last arthropod

ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess)

Potential ideas-
Swamp world: A world covered in lakes, with the largest being caspian sized.
Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal.
Tri-devonian: A devonian like ecosystem with holocene species on three different continents.

Quotes


Phylogeny of the arthropods and some related groups


In honor of the greatest clade of all time


More pictures


Other cool things


All African countries can fit into Brazil
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