Wes Weasely, a 'Weasel' in the Series? (Possible Spoiler.)

I was trying to find information about Wes Weasely in the series. Apparently, someone had written "Weasel" for the "Species" of Wes Weasely. Please look at the following web site for the comprehension:

http://sonic.wikia.com/wiki/Wes_Weasely

How can Wes Weasely be a weasel? I do not understand the way in which a weasel can appear to be a person. Please help me with this idea, since I have a mild form of autism, the Syndrome of Tourette, obsessive-compulsive disorder, and attention deficit hyperactivity disorder. Please help me with the comprehension.