Car conversation with teenagers

Son (15): I can't believe my biology teacher isn't giving us everything we need to know for our genetics test until the day before.

Me: Really? What are you studying?

Son (15): RNA, DNA, protein synthesis, amino acids, stuff like that.

Daughter (13): I dissected a cow heart once.

Me: I never did too well with genetics. I just started a book by a guy named Edward O. Wilson, who thinks that all human knowledge can be explained through evolutionary biology.

Son (15): He hasn't even told us the the procedures we'll need to know for the test.

Daughter (13): It looked kind of like a chicken with no wings or legs.