It describes marine life and marine processes that ranges from the unimaginably abundant microscopic organisms that drive the oceans' food web to the apex predators. It provides fundamental overview of the tropical marine biology. The subject matter is presented in a lucid and succinct style so that even those who do not have a prerequisite knowledge of the subject can easily understand it. This book is perfect for anyone who wants to know more about the life under the waves, amateur naturalists, conservationists and marine biologist.