The Hungry Tide's diet

This is a comparison through which I want to depict the amazing play of tides in these mangroved forests of Sunderbans. It is the shot of the same place, one taken in the evening when there was low tide and the other one next day morning when it was high tide. This place is adjacent to the watchtower in Sajnekhali tourist lodge and should be almost 250-300 feet away from the river bank. Actually the water goes much more inside the islands during high tide and goes back again during low tide. And this is what happens there everyday. Half of the day the land is under saline water. And when the water recedes, the muddy soil is left behind. I wonder how wildlife is thriving in these kind of harsh conditions and that too since ages. Isn't it amazing to know that we have such kind of habitats also in our beautiful country!