Animal life

What is an animal?

Evolution

Animal history

Classification

Animal groups: Invertebrates

Arthropod groups

Arthropods

Vertebrate groups

Fish groups

Fishes

Amphibian groups

Amphibians

Reptile groups

Reptiles

Bird groups

Birds

Mammal groups

Mammals

Skeletons and muscles: Water skeletons

Horny skeletons

Chalky skeletons

Bony skeletons

Movement: Walking and running

Climbing, leaping, and jumping

Burrowing, slithering, and sliding

Flying and gliding

Swimming

Body coverings: Skin

Scales

Feathers

Fur, hair, and bristles

Body systems: Breathing

Circulation

Digestion

Fluids and temperature control

Brains, nerves, and hormones

Senses: Touch and vibration

Taste and smell

Vision

Hearing

Echolocation

Electricity and magnetism

Living space: Home ranges and territories

Migration

Animal architects

Hunting and feeding: Feeding on plants

Omnivores

Predation

Scavenging

Feeding partnerships

Defense: Weapons and threats

Camouflage and deception

Group defense

Sex and reproduction: Reproducing without a mate

Finding a mate

Sexual rivalry

Courtship

Mating

Birth and development: Life stories

Raising young

Play and learning

Society

Communication: Pheromones and smell

Visual signals

Sound

Touch, vibration, electricity

Intelligence

Glossary

Index

Acknowledgments.