Kappe 
"[@Tryp":Changeling](/1014534#comment_4396785
)
Ehh, no, they're definitely fins. The light gray lines clearly represent cartilage/bony spines like on the dorsal fin of a fish, and are in the right spots to be such. It also doesn't extend over their skulls like a pony mane does.
![full](https://derpicdn.net/img/2013/2/10/239303/small.png
Ehh, no, they're definitely fins. The light gray lines clearly represent cartilage/bony spines like on the dorsal fin of a fish, and are in the right spots to be such. It also doesn't extend over their skulls like a pony mane does.