I'm so sorry for my really late report on the black fox. First I was cut off from the internet for two days because the people of the road construction outside our sutden apartment hit the cables then finally my fiance came to visit me here in Sweden and I totally forgot about my challenge. But here it is now, enjoy!
The only tameable black foxes live in the Redrige Mountains and are known as forest stalkers between level 18 and 19. First thing I noticed was, that these foxes seem to be the only ones not affected by the "tinyfication" of some pets (like the Baradin Foxes or the ponies in the area around Tarren Mill). Second thing was, that this fox I tamed didn't grow after taming, he kept his size (but more about that later).
I named my Tauren's new friend Sinopa, meaning something like spirit of the fox in a native american language. Here she is after taming looking cute:
Appearance:
Sinopa has a greyish to black fur, with a white throat and a white tip of her tail. This makes a nice contrast and suits her very well. I was always quite fond of foxes but always only saw the withe ones or Ashtail around in Orgrimmar. I already have a fox with Larkania, a red one called Cream. I didn't actually know that there even were black foxes and always thought that Ashtail was the darkest until I met them with an Alliance toon while questing. So after the quite long journey you have to make as Horde to get out there to Redrige, I was the proud owner of this beauty. I almost immediately felt connected to her. Sad thing for me is her size. I read about several people "complaining" how big the foxes are but I really have to disagree. The look fragile and tiny next to every cat/wolf/raptor/whatever except maybe for dogs. I took some screenshots of Sinopa before and after taming her and she didn't grow an inch. She looks really small compared to my Tauren. I KNOW that foxes are not huge in RL, but since when are wow pets like their rl models (wasps, beetles anyone?). I'd really love to see Sinopa grow a bit, just that she won't look like a mini-pet companion next to Larkania. But apart from my "size-issues" with her, I really like her model. She always seems to smile and be eager to do something silly and/or cute.
Animations:
Like you can see in the pic above, Foxes have the same sniffing-the-ground-animation Hyenas and wolfes already share. She also does the scratching:
Then one thing I never use on my foxes: "Play" aka "fox dancing like a puppy wanting a treat" (or shaman in wolf form...). It looks kind of cute, but why did they give this animation to foxes and not dogs? I never really understood the reasoning behind it it doesn't even affect the fox in any positive kind like the ablility of the bears (I think it now helps them to regain health, Petopia still says happines...).
Sinopa's swim animation is basically a dog-like paddle, like most of the four-legged animals in WoW have.
Fighting:
Sinopa is a ferocity pet, so her damage output is very well. I like taking my fox to dungeons with me when the "normal" buffs from cat and wolf are already covered and the "tailspin" ability reduces the damage on the tank a bit, because the enemies attack speed will be reduced by 20%.
This is a pic of her ability. I think it looks rather silly that her head is stuck inside the cloud, but well...
Her attack animation is basically lunging at the target and biting it, this is a nice shot of her trying to eat the dummy in Orgrimmar:
Conclusion:
I really like foxes and Sinopa grew on me. I had her out while doing the achievment with the treats when I stumbled over Rak'Shiri. I released her for him and now I regret it. I let Rak'Shiri go again, his blue just didn't fit my nature-bond Tauren and now I'm thinking about getting her back. Writing the review about her made me realize how much I like her. I think I need to spend time with my other fox now and then decide if I keep him or get Sinopa back
Next roll please:
Name: Morga (Orc)
Level: 85
Exotics: yes sure, BM is his main specc
restrictions: no diseased pets please
rares he has: several spirit beasts, The Razza, Deathmaw, Aotona, Krush, Pogeyan, Skarr (but if you roll them I'm happy to write a review about them!)
edit: Pets I already did review:
with my Tauren Larkania: Dark Grey Gorilla, Red Nether Ray, Armored brown ghost boar, brown rhino, blue warpstalker, tan wolf, Aotona, black fox
with Nerdanel (Belf): green raptor, purple demon dog, purple parrot, blue raptor, blue vulture
Finduilas: yellow beetle, white chimera
with several others: brown scoprid, grey moth, diseased dark brown bear, armored black boar
Also, if you'd like to review the new pets you have (and haven't already reviewed), I'd be more than happy to "randomly" roll them for you.
! If you look close you can see that she gives off a shower of little colorful spores everywhere. 
