So much goes in .. and so little comes out??

[Dom]

Hello!

I know that in general, bloods really do not go to the washroom often .. but this is getting rediculous, I might find excretion in my cage once a month .. and he eats every week..

Why are they like this? What is the reason for such a metabolism? Could it not be harmfull to keep it in for such long durations..

Any explanations would be apreciated.