agitated Feeling nervous or troubled anxiety A feeling of worry or nervousness breed A particular kind of dog chromosomes Material in a body’s cells that carry all of the information used to help a cell grow thrive and reproduce compassion Concern for a human or other animal descended To be a direct blood relative domesticated An animal that becomes tame is kept in a home or on a farm evolve To change over a period of time motor nerves Nerves that carry signals from the brain to muscles sensory nerves Nerves that carry signals to the brain 2 WORDS TO KNOW
Words to Know 2 Chapter One Sir Wiggleton’s Happy Grin 4 Chapter Two Descended from Wolves 7 Chapter Three Always Happy to See You 10 Chapter Four Reading a Dog’s Mind 13 Chapter Five What Gives a Dog Joy 17 Chapter Six Why They Do What They Do 20 Chapter Seven A Dog’s Many Emotions 24 Chapter Eight How Dogs Are Like Us 28 Learn More 31 Index 32 CONTENTS
CHAPTER ONE SIR WIGGLETON’S HAPPY GRIN In 2016 a big white dog roamed the streets of Detroit Michigan The poor pup had no home and he later spent three months in an animal shelter That’s when Detroit Dog Rescue came to his aid The group members named the dog Sir Wiggleton and they took a photo of his huge grin The corners of Sir Wiggleton’s mouth turned upward like the Joker in a Batman cartoon His It Might Not Be a Smile When a dog bares its teeth it may appear to be smiling However it could be agitated and displaying a warning back off In such cases a dog may attempt to snap or bite 4
If a dog looks like he’s smiling and his tongue is hanging out he likely is happy or excited
