The chapters incorporated in the present Volume 5 of the book series Animal Diversity, Natural History and Conservation represents an extremely modest selection of several facts on the subject. The lead articles includes: . Community Ecology and Taxonomy of Polychaetes in a Tropical Estuary . Distribution of Nymphalid Butterflies (Lepidoptera: Nymphalidae) at Different Altitudinal Habitats . A Taxonomic Review of the Genus Cyrtolabulus Van der Vecht, 1969 . Web Dynamics and Estimation of Capture Area of the Common Signature Spider, Argiope pulchella Thorell . Morphology of Cyrtophora bidenta Tikader . Effect of Insecticides on Spiders . Eco-biology of the Endemic Fruit Fly Phorticella striata . Breeding Biology and Mating Strategies of Coral Reef Shrimp Lysmata wurdemanni Gibbes . Perspective on Fish Diversity . DNA Fingerprinting in Conservational Research on Ichthyofauna . Aspects of Dietary Tactics and Choices in Little Brown Doves (Streptopelia senegalensis senegalensis) . In Situ and Ex Situ Conservation of Red Panda . Habitat Characteristics and Foraging Ecology of Common Babbler, Turdoides caudatus caudatus . Behavioural Ecology of Sloth Bear (Melursus ursinus Shaw 1791) . Ecological Crisis vis-à-vis Intraspecific Conflict: A Case Study with Rhinos . State of the Asian Elephant (Elephas maximus Linnaeus 1758) and its Habitat It is hoped, this volume of the series shall be a useful resource of knowledge for the biologists, environmentalists, ecologists, conservationists and people of allied disciplines engaged in respective fields of research.