This is the kind of memory that a real spider does not need, because she uses previous threads as physical memories of her path.
This is not to suggest that web building does not need long-term memory: it does.
Do spiders have brains?
Spiders technically do not have brains, just because of the way “brain” is defined by people who study anatomy. But they do have concentrations of neural cells that fill up most of the space in the cephalothorax. Jumping spiders, and maybe some others, have “brains” that extend down into the legs.
Do spiders have thoughts?
The tiny arachnids possess an abstract working memory—a capability usually seen in larger animals, a new study says. With brains the size of a sesame seed, jumping spiders may seem like mental lightweights. (See “Surprise: Jumping Spiders Can See More Colors Than You Can.”)
Do jumping spiders recognize their owners?
It’s possible. Spiders are intelligent and many owners say that shy and scared spiders can get used to their new owners being around. It’s hard to say if it’s because they recognize the person or just feel more relaxed after a while. Most spiders have bad eyesight but can hear and smell.
Do spiders have feelings?
Everything feels emotions. Emotions are communications to others, a spider has little need to communicate fear or anger to other species, it only has to attack or escape. Emotions are social behaviors and spiders are not usually social animals (with some exceptions).
Photo in the article by “Christian Bauer”