Reproduction, again.

Froglet *is looking at the squirrels in the backyard*: Do squirrels reproduce, too?
rainette: yes.
Froglet: Oh.
rainette: ...
Froglet: So, does that mean that ALL animals reproduce?
rainette: why, yes. Uhuh.
Froglet: Oh.
rainette: ...
Froglet *frowns slightly*: so it's only the trees and the houses that don't reproduce, then.
rainette *blinks, startled by the mental image invoked by Froglet's comment: a grand mansion and a charming cottage affectionately holding doors and proudly watching over a gaggle of variously-sized garden sheds* Erm. No, trees do reproduce, with seeds. Houses don't reproduce at all.
Froglet: oh.
rainette: ...
Froglet: Mummy, can I have an apple?
rainette *cautiously*: why?
Froglet: So I can have the seeds and plant an apple-tree!

Of course. *sighs*