Are they children? or are they animals?

On the train, on my way to the airport, on my way to Las Vegas, I wasted time by editing some of my photographs.
Two of my many categories are Animals and Children.

For some reason I just kept mixing the two up.

Animals ended up with babies from all over the world and Children had dogs, horses, and random chickens.

I had to stop and wonder... Are they children? or are they animals?