Macrocheira kaempferi
With the monstrous appearance, they do look scary
But are very docile, quite the contrary
Exoskeleton is pale to bright red
Once in a while, the armour is shed
Wading to the shallow waters, to lay eggs
Balancing on 8 long dangly
Image via critter.science
forest hut 
The creature looks quite scary. Your poem perfectly describes the basic characterstics of the spider. Good!
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