I am very new to Blender and wanted to use the program to UV unwrap a 3D Pokemon model from the games to use it as a sewing pattern. Now after watching some basic tutorials about unwrapping and marking seams I've noticed that the model itself unwraps on certain edges with no existing seams or anything and I don't know why. I haven't found any help while Googling my problem yet and am hoping I can get some help here!
This is how it looks without adding seams and no UV unwrapping, just selecting the whole thing in UV editing mode:
And this is after adding my own seams and UV unwrapping it: