How do you mean "friendly"? They do not behave like a dog that has perhaps never seen you before but will still wag his/her tail and come up wanting to play or to be petted. On the other hand, many of them are not **un**friendly and some of them definitely are unfriendly.
I once bought an arboreal tarantula from a dealer who warned me that he wasn't sure of the species (although he knew the genus for sure), but he thought that it would very possibly be aggressive. I never saw it be aggressive, but I was careful around it anyway and did not try to handle it. It had a hanging case about 2.5 feet x 4 feet and about three inches deep. The five sides of the cage were wood, and one was plexiglass. So it was like looking into a window and finding a big spider between the window and the storm window. After a year or so, a web-weaving spider got in there with the tarantula and made a big messy web that seemed to take up about half of the volume of the cage. The poor tarantula was bopping around like crazy. There was a door in the side of the cage through which I had often watered and fed the tarantula. It had never paid the slightest attention to this door. Seeing that the tarantula was in trouble, I opened the door. To my surprise the tarantula walked rapidly to the door and out and onto my hand. I walked her across the room and put her in a temporary cage. Then I ousted the web weaving spider and cleaned up the cage. Finally I put my hand in the temporary cage, the tarantula got back on, I walked it across the room and pointed it at the door. It went in and I closed the door.
I would love to know what was going on in the tarantula's mind. Its brain couldn't have been any bigger than the head of a map pin, but it seemed to be capable of seeing me as a source of help. Somebody with a different set of preconceptions about Spiders might have expected it to bite since it was already pretty worked up about things.
A veterinarian told me that she had a college vet class with a lady teacher who owned a tarantula. The teacher gathered the class around a table, and put the spider out in the middle of the table. The teacher predicted that the spider would go around the table until it found her, and then it would come over to her and get on her hand. Sure enough, said the vet, that is exactly what happened.
It does seem fairly clear that even smaller spiders such as jumping spiders can learn about humans. "This human has been standing within smacking distance of me for fifteen minutes now, and nothing bad has happened. I think I can relax." Of course I don't think that the spider thinks in words. But it learns that this mountainous creature has been around for a while and nothing has happened so nothing is likely to happen.
I think Tarantulas are good pets.They are fun to watch.
Tarantulas are a bad threat to Hamilton's frog.
not all spiders have good eyesight, like tarantulas, for example
the turantula is like a monster ready to atack
Tarantulas are not native to Scotland.
No. Tarantulas are not mammals they are arachnids
Pet kingdom usually sells tarantulas.
tarantulas got their name from Taranto,Italy
tarantulas weigh 3lbs maximum
Tarantulas live in burrows they dig.
Yes, Tarantulas can be the color grey.
No, there are no tarantulas native to Wyoming.