Remember, its Japanese name is "Fushigidane" which means "Isn't it strange?" which refers to its mysterious origins and also a Japanese pun that has several meaning including but not limited to:
"what a wonder!"
"what a miracle"
"it's so mysterious"

and it's sad that this concept lost its meaning outside Japan and the recent events proved how valuable its Japanese is when people can't agree whether if Bulbasaur is a frog/toad, dinosaur, turtle, cat, or whatever.

It's like what it's intended to be, they designed Bulbasaur for people asking over "what the fuck is Bulbasaur is?"