Over millennia, the Mississippi River carried layers of sediment downstream to form a vast delta, with swamps, bayous and natural levees. Much of this region became Louisiana, home to a unique American culture. There, Spanish, French and African-American food, music and language combined to create a distinctive way of life.
The hagfish is a slime-emitting ocean-dweller that's remained unchanged for 300 million years--and it shows. It has a skull (but no spine), velvet smooth skin, and a terrifying pit of a mouth that's lined with rows of razor-sharp teeth.