What happened to my elephant!?

Look at the image below.
How many legs does the elephant have?

Five? four? maybe more? Really, the elephant has four legs and five feet... but how? Like the impossible trident, this poor elephant is stuck on your computer screen. It is impossible for it to exist in a 3 dimensional space.
Impossible Object, impossible trident (I know this isn't really and impossible trident, but another version of it.), elephant