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They're one of the only insects that show hunting behavior, as in pattern recognition and path planning [1], with brains so large that their esophagus has to go
by nomel 3y ago
They're one of the only insects that show hunting behavior, as in pattern recognition and path planning [1], with brains so large that their esophagus has to go through it, to fit, with one of the largest brain to body rations of any animal. And, they dance [2]!
Easily my favorite little critter.
1. https://roundglasssustain.com/species/portia-spiders https://roundglasssustain.com/species/portia-spiders
2. https://www.youtube.com/watch?v=5qkzwG2lLPc https://www.youtube.com/watch?v=5qkzwG2lLPc
- apantel 3y agoI’m pretty sure my esophagus goes through my brain too… the way I think about food… Edit: I can also jump!
- nomel 3y agoYes, but does your esophagus get pulled out every time you shed? I think not! And, you have simple fixed zoom balls for eyes, where they have muscles that point little telescopes [3], that pivot at the eye hole, each with two lenses, allowing control of focus and magnification. 3. https://www.wired.com/2014/04/spider-vision-made-clear/ https://www.wired.com/2014/04/spider-vision-made-clear/
- wisemang 3y ago“He must mesmerize… or die!” Crazy video thanks for that.
- mkl 3y ago> They're one of the only insects They're not insects at all. They're spiders. Edit: Here's an evolutionary tree: https://en.wikipedia.org/wiki/Arthropod#Evolutionary_history:~:text=Protostomes,Hexapods https://en.wikipedia.org/wiki/Arthropod#Evolutionary_history.... Insects are a group under "Hexapods", and are more closely related to crabs, lobsters, shrimp, centipedes, and millipedes (none of which are insects) than they are to spiders, which are under "Chelicerates".
- Espressosaurus 3y agoSome additional True Facts about jumping spiders: https://www.youtube.com/watch?v=KxM_cag99nU https://www.youtube.com/watch?v=KxM_cag99nU