"Triangle" concept about feeding

Alright. Here's a pic. Whatya'll think? https://ball-pythons.net/gallery/fil...4/p2250024.jpg

I can feel Alexander's spine,he's 13/14weeks old.Is that normal for a little one? Now he ate his first frozen today, he won't be missing any meals anymore.

I'm pretty sure that for baby BPs seeing the spine is alright, as long as it goes away when it gets older. =]