Jawfish

This little fish is one of my favorite fish ever.  The jawfish, with it's distinctive yellow head and white body, builds what could be considered a marvel of engineering for a home.  They build a burrow in the sand and swim vertically out of it and then reverse themselves into it (tail first) when danger comes close.  They look a bit like a cobra coming out of a basket when they have just their head poking above the sand.  

I saw a National Geographic video of a jawfish making it's home, and it was amazingly ornate.  Fully reinforced with bits of coral and rock, and then covered completely with sand to blend into the floor.  Maybe one day I'll have the patience to sit still and just watch these guys at work.