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Zoology

zO ol' o jE, the scientific study of animals

FEATURED PAGE

Marlin Perkins
(Richard) Marlin Perkins
zoologist who gained fame as the host of a nature program

CONTENTS

Biography
Biography

Zoos, Animal Parks, Etc.
Zoos, Animal Parks, Etc.

Animal Behavior and Psychology
Animal Behavior and Psychology

Embryology

Protozoa
Kingdom Protozoa
a group of single-celled organisms that have characteristics of both plants and animals

Phylum Cnidaria
Phylum Cnidaria
a group of invertebrate radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures that includes corals and jellyfish

Phylum Porifera
Phylum Porifera
a group of primarily marine invertebrates characterized by having a body covered with pores; sponges

Phylum Annelida
Phylum Annelida
a group of invertebrates characterized by having a segmented body

Phylum Echinodermata
Phylum Echinodermata
a group of radially symmetrical marine invertebrates that includes starfish and sea urchins

Mollusks
Mollusks
a phylum of invertebrates with a soft body usually protected by a shell

Class Pycnogonida
Class Pycnogonida
a class of arthropods comprising about 1,500 species of sea spiders

Arachnids
Arachnids
a class of arthropods characterized by having four pairs of segmented legs

Crustaceans
Crustaceans
a class of arthropods characterized by having the body at least partially covered with a hard shell, including crabs, lobsters, shrimps, etc.

Insects
Insects
any of a class of arthropods having the body divided into three parts and having three pairs of legs

Fishes
Fishes
any of various cold-blooded aquatic vertebrates having gills, fins, and typically scales

Reptiles and Amphibians
Reptiles and Amphibians
frogs, salamanders, crocodiles, lizards, snakes, etc.

Birds
Birds
warm-blooded vertebrates that lay eggs and have feathers and wings

Mammals
Mammals
warm-blooded vertebrates that nourish their young with milk from maternal mammary glands

Sources and Links

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