Quote Originally Posted by nitroball View Post
Sorry to sound like an idiot, but what is "spinning behavior"? BTW, he is a handsome boy!!
Spiders are known to have a behavior, believed to be linked to the spider gene that can range from very mild to very extreme, where they either have a barely detectable head wobble, all the way to corkscrewing on themselves. The corkscrewing behavior is referred to as spinning.

Some are hatched with a very pronounced spin, but grow out of it, some may have a barely detectable head wobble when hatched, but develop severe spinning.

In most cases, it doesn't appear to affect the health of the animal, because they continue to feed, defecate, grow and breed.

They are also known for their very "friendly" type of personality. It's something that all potential spider owners should be prepared for. It can be very disconcerting to even a prepared new owner the first time they see the behavior displayed.