No it didn't work either and I decided to make a red dolphin variant just to see what happens and that didn't work either so I'm going to give the steps I did in order and hopefully there is a problem that will be pointed out:
1. I went into MY ZT2 Creations folder and made a new folder called "red dolphin"
2. Inside that folder I made enities, inside entities I made units, inside units I made animals, and inside animals I made "DolphinBottlenose"
3. I then went into my ZT2MM folder which was extracted from x200_000 and went into entities, units, animals, and DolphinBottlenose.
4. I copied Dolphin_Adult_F, Dolphin_Adult_F_Dirty, Dolphin_Adult_F_Sick, and Dolphin_Adult_F_Sick_Dirty.
5. Then I pasted those into my DolphinBottlenose Folder.
6. Next I went into DXTBMP and opened all of them and edited them with Adobe Photoshop Elements 2.0, I clicked on refresh to change to my new skin.
7. Then I went to Save As, DDS Texture, kept the file name the same except for adding _3 to the end. The drop box below said DDS DXT1. There is a DDS DXT1 (No Alpha) but I did not use that.
8. Then I pressed Save and deleted the files that were not edited. I checked the files to make sure I edited them.
9. Then I backed out of the file to entities, clicked right click to Add to zip, named the file reddolphin.z2f and it showed up in my folder as a MM2 icon with the name reddolphin.
10. Finally I copied and pasted it into the main ZT2 folder in C:/ Program Files/Microsoft Games/Zoo Tycoon 2
11. I ran the game and no variant after 50 male and 50 female dolphins.
So what should I do?