Extending over a vast majority of Florida's southern and southwest coastline, mangrove swamps are areas vibrating with secretive life. To the unwary eye, mangrove swamps are merely a large, confusing entanglement of trees and roots. But if one looks closely, they can see the delicate balance of life in the ecosystem.

A mangrove community, generally consisting entirely of red mangroves, begins as seedling nearly a foot in length, released by its parent plant into the sea. The long, thin seedling floats vertically in the water; one end absorbing water and sinking due to the weight, while the opposite end, surrounded by a waxy covering, repels water and floats. Leaves can sprout from the upper end, and roots from the lower while floating. In this state, the seedling can survive for a year, drifting aimlessly until it floats to a shoal or shallow. There it takes root, often far offshore, growing as the ocean currents wash up sand within a few centimeters of the water's surface. In a year the plant can grow to a meter in height; in three it will have produced prop roots; and in five, assuming no natural disasters, a small mangrove island will be established.

The prop roots sent down by a mangrove appear as pendulums growing vertically down until they reach the water. There the roots branch, forming an intricately woven web that is continuously expanding. In the ever-changing underwater habitat of ocean tides, prop roots of mangroves aid in oxygen uptake while simultaneously creating a complex microhabitat. The dominant life forms among the roots are a plethora of crabs, including the Spotted Mangrove Crab, or Tree Crab. There are a variety of snails to be found in the mud beneath prop roots, as well as several that live on them. The amount of time a zone on the prop root spends underwater determines what organisms will be found there. For example, the uppermost animals are star barnacles, while larger barnacles are found farther down, leading eventually to the oysters in the midtidal zone. Mussels populate the mid and lower intertidal zones. The subtidal zone is home to tunicates, sponges, fanworms, and some anemones.

A variety of birds can be found above the maze of prop roots, in the thick boughs and heavy foliage of the trees. Thickets of mangroves are sources of roosting and nesting sites for herons, egrets, White Ibises, Brown Pelicans, and Magnificent Frigatebirds. There are also several species of birds closely associated with mangrove swamps. Among these are the Golden race of the Yellow Warbler, the Black-Whiskered Vireo, and the secretive Mangrove Cuckoo.

Mangrove swamps produce tons of rich organic detritus each day, off of which bacteria, molds, tiny crustaceans, and larval shrimps and fishes feed. In fact, a single acre of red mangrove sheds more than three tons of leaves each year. It is crucial to the swamp's survival that the daily flushing and replenishment of the tides occur.

Mangrove trees are specially adapted for their unique environment. Because they are bathed in a solution with higher salinity than themselves, water from within the trees would naturally seep out to the surrounding ocean due to osmosis. Should this happen, the trees would dry out and die. Also, should the mangrove intake too much salt, the same would happen. To prevent this from occurring, mangroves either screen salt out of the water they absorb, or they absorb salt from the water and water follows by osmosis. The mangrove then excretes the salt out through special glands in their leaves, but water cannot follow out by osmosis this time as there is a thick waxy cuticle surrounding the dark mangrove leaves.

Mangrove swamps close to the ocean have two differing sides. The side facing inland is a typical mangrove swamp, densely populated by red mangroves. The second side, facing toward the open ocean, is a beach with fine white sand washed ashore by the current and caught on the densely interwoven barrier of red mangrove prop roots. The higher ground resulting from the blocked sand allows for the growth of different species of trees, such as the black and white mangroves, buttonwood, and sea grape.

As is apparent, the mangrove swamp is home to many different types of living organisms. It is an environmental treasure.