Just curious, easy question

[cba040608]

I'm just wondering what it means when someone says they have 1.1 Bumblebee and 1.0 Spider . . . I know they are ball pythons, I'm just wondering what 1.1 means? I know its kind of a lame questions but I couldn't figure it out

[blackcrystal22]

Male.Female.Unknown
2.4.5 : 2 males, 4 females, 5 unknown