Is SpongeBob Square pants a synthetic or a natural sponge?

He’s OBVIOUSLY a synthetic cellulose kitchen sponge…! I mean, come on! He’s rectangular and all! Natural sponges don’t come in that shape. That’s why he’s so strange and why he doesn’t seem to fit in quite right there in Bikini Bottom – not because he’s homo or anything like that, they way people keep on saying!

They just haven’t show his origin story yet, where he gets sucked down the drain of the kitchen sink and winds up on the ocean floor -- kind of like Finding Nemo, only in reverse. Where did you think Pixar got the idea?

27 MAR 07, 0623 hrs, GMT.

According to his background story he would seem to be a natural sponge, but the way he is shaped he looks synthetic. All natural sponges that I have seen have rounded edges and corners and are all shaped a little different, not so rectangular.

Sea Sponge.

He is adopted. He fell of the small island above Bikini Bottom after a shipwrecked dishwasher was rescued. His parents found him much like the Kent's and soon adopted him. His synthetic nature is what makes him so distinct from the other creatures around him.

He looks synthetic. i don't think natural sponges have a 90 deg flat top and butt.

he is synthetic.. which is odd considering his mom in natural.

natural sponges are roundish....whereas synthetic tend to be perfectly round or square like our pal bob..

now if someone can just explain patrick to me..lol

i think he's a synthethic. his colour is too yellow and he is in fact, square. normal sponges looks like his parents and grandma :-)

he looks synthetic to me!

synthetic