This song is available on Tickle Tune Typhoon's Singing Science.
Chorus:
Form follows function in all biology
Form follows function it's easy to see
A purpose you'll find in every design
Form follows function
An octopus has suction cups they help in picking something up
With the longest neck you'll reach the leaves that giraffes like to eat
Insects have instead of skin, a hardened exoskeleton
Flying, soaring, hovering, birds can fly with feathered wings
Underwater breathing requires no skill if you're a fish with gills
To scare predators you can be a rattlesnake.
Just give your tail a little shake. Rattle! Rattle! Rattle!
Form follows function in all biology
Form follows function it's easy to see
A purpose you'll find in every design
Form follows function
This song is available on Tickle Tune Typhoon's Singing Science.
