Zoology / Stephen A. Miller, Todd A. Tupper.

Includes appendix, glossary and index.

"Printed in the Philippines."--Copyright page.

Zoology: an evolutionary and ecological perspective -- The structure and function of animal cells -- Cell division and inheritance -- Evolution: history and evidence -- Evolution and gene frequencies -- Ecology: preserving the animal kingdom -- Animal taxonomy, phylogeny, and organization -- Animal origins and phylogenetic highlights -- The basal animal phyla -- The smaller lophotrochozoan phyla -- Molluscan success -- Annelida: the metameric body form -- The smaller ecdysozoan phyla -- The arthropods: blueprint for success -- The pancrustacea: crustacean and hexapoda -- Ambulacraria: echinoderms and hemichordates -- Chordata: urochordata and cephalochordate -- The fishes: vertebrate success in water -- Amphibians: the first terrestrial vertebrates -- Nonavian reptiles: diapsid amniotes -- Birds: the avian reptiles -- Mammals: synapsid amniotes -- Protection, support, and movement -- Communication I: nervous and sensory systems -- Communications II: the endocrine system and chemical messengers -- Circulation and gas exchange -- Nutrition and digestion -- Temperature and body fluid regulation -- Reproduction and development -- Appendix A: Animal phylogeny -- Appendix B: The history of the earth: geological eons, eras, periods, and major biological events -- Appendix C: Animal-like protists: the protozoa.

"Dragonflies and damselflies are members of the phylum Arthropoda and insect order odonatan (Gr. Odon, tooth). Odonates are an ancient group of insects whose fossils date into the Carboniferous era about 325 million years ago. Some of these fossils reveal species (family meganeuridae) that had 70 cm wing spans – far bigger than typical 5 to 8 cm wing span of modern dragonflies. Dragonflies and damselflies spend most of their lives in freshwater immature stages called nymphs that last one (damselflies) to six (some dragonflies) years. Nymphs prey on other freshwater invertebrates until they undergo a final molt to become a winged adult. Adults prey on flying insects and survive for a season before they reproduce and lay eggs in freshwater or within emergent vegetation. Dragonflies have extremely large compound eyes that helmet their head. Each eye is comprised of 30,000 visual units called ommatidia, and both eyes provide a 360 degree filed-of-view. Their eyes perceive color and polarized light, and they detect the slightest movements occurring around them. Scientists are still learning about what dragonflies see, but dragonfly yes have proved their worth in locating flying prey and avoiding predators and collectors’ nets. A spatula-like modification of an insect mouthpart, called the labium, folds over the front of the head at rest. When feeding, the labium is quickly extended, and toothed, prehensile lobes capture prey and bring it to the mouth. These sensory and feeding adaptations – combined with a dragonfly’s ability to fly quickly forward, backward, and change direction – have promoted this group’s survival for over 300 million years."--Back cover.

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