Would you like this for a pet?

[Wood~Ant]

Firstly this is NOT an ant, but a spider; but it could certainly fool anyone into thinking it is an ant at first glance. 

[James O'Neill]

That is an amazing imitation. There seem to be a few different unrelated types of spiders which have tried to transform into ants. There are several Salticidae which have done so, as well at that one, which is not a Salticid.

[Wood~Ant]

I don't know what species the spider belongs to, but Alex may have it somewhere on his site? Tab in neoponera villosa which was the name used to describe it on his site here} Alex Wild

[Yanitch]

I did an image search on this as I didn't believe at first that it was a spider! It is apparently Sphecotypus niger, here is a link to the story:

www.myrmecos.net/2011/03/02/not-the-ant-I-thought-it-was/#more-6898