Glass Frog Description

Dinner conversation:
Dylan:  Hey did you know there is this frog called a glass frog?
Family:  No, why is it called a glass frog?
Dylan:  Because it has this clear skin and you can see the testicles and the bones and everything!
Family (Laughing hysterically)  Wow, you can even see the testicles?
Dylan:  Yea, why are you laughing?
Family: Dylan, think about what testicles are.
Dylan (now laughing hysterically)  Oh, I meant the intestines.