The muhly grass sways
As the crocodile moves through.
The frog remains still.
Muhly grass is common in the everglades and is usually windy when it blooms. But the grass not only sways by the wind, but by crocodiles and alligators crawling through (only place in the world where both coexist).
While the grass and crocodile in the haiku are moving, the frog is remaining still. This contrast shows the stark reality of survival in nature. There is tension between these two creatures, but the wind is truly free from conflict.