Sam Hinton wrote the classic evolution song to the tune of "It's a Long Way to Tipperary":

It's a long way from Amphioxus,
It's a long way to us,
It's a long way from Amphioxus
To the meanest human cuss.
It's good-bye, fins and gill-slits,
Welcome, lungs and hair!
It's a long, long way from Amphioxus,
But we all came from there.


You can teach backwards, too, by showing the wrong stereotypes and explaining why they're wrong. Dave van Ronk's "Ally Oop" shows that off.