The buffalo and big cypress bayou both contain__

The Buffalo and big cypress bayou both contains salt marshes.

Explanation:

The salt marshes are 'coastal wetlands' that are flooded and dehydrated by the salt water brought by the tides. This coastal ecosystem act as a great breeding ground for hundreds of species of small and shell fish by occupying intertidal areas.

Cypress Bayou is the name that suits for many wetlands on the western edge of Caddo Lake. The Buffalo metropolitan area is located in Western New York.

They are soggy because the soil can consist of deep mud and peat that are comes from decomposition of bogs and fens. It is located in the southern parts of the US, especially in South Carolina.