Group Discussion:
-I would like you to think about what it means to be domesticated?
-Why do we choose the pets that we have?
-Can all animals become pets?
-What responsibility do humans have towards animals?
-If you could have any pet what would it be and why?
Lecture:
Domestic animals share similar characteristics
-Pedomorphesis (Child like brain, do not enter their dominant stage)
-Piebald coloring
-Shortened or Curly Tails
-Floppy Ears
-Smaller or larger size (than average for the species)
-Friendly (Less aggression)
Watch this video on Pedomorphosis
Watch this video on domestication
In the former soviet union, now Russia, scientists wanted to study how wolves became domesticated dogs. In their experiment they used foxes. A fox is a wild animal. They will bite humans and attack them if confronted. A fox does not make a good pet. The Russian scientists took the tamest ones and bred them together. After many generations the foxes became genetically tame. Some other physical characteristics also appeared, their legs became shorter and they developed tail wagging.
Watch this video on pet foxes
Examples:
Some Domesticated Piebald animals
The fossil record shows the domestication of dogs happening around 30,000 years ago.
Domestication of cats happened around 12,000 years ago in the middle east
Farming started about 12,000 years ago and livestock stock around 11,000 years ago
Group Discussion:
So based on what you now know, how do you think wolves evolved into dogs?
Do you think that all animals can become pets?
Is it fair to own a non-domesticated animal as a pet?
Who should decide whether or not a species of animal can be kept as a pet?
Breakdown of pet ownership in the U.S. according to the 2015-2016 APPA National Pet Owners Survey
Number of U.S. Households that Own a Pet (millions)
Bird 6.1
Cat 42.9
Dog 54.4
Horse 2.5
Freshwater Fish 12.3
Saltwater Fish 1.3
Reptile 4.9
Small Animal 5.4
Total Number of Pets Owned in the U.S. (millions)
Bird 14.3
Cat 85.8
Dog 77.8
Horse 7.5
Freshwater Fish 95.5
Saltwater Fish 9.5
Reptile 9.3
Small Animal 12.4
Estimated 2015 Sales within the U.S. Market
For 2015, it estimated that $60.59 billion will be spent on our pets in the U.S.
Estimated Breakdown:
Food $23.04 billion
Supplies/OTC Medicine $14.39 billion
Vet Care $15.73 billion
Live animal purchases $2.19 billion
Pet Services: grooming & boarding $5.24 billion
As of 2024, the United States is home to approximately 393 million pets across various animal types. Here's a breakdown by species:
Animal Type
Estimated Number of Pets
Freshwater Fish - 139.3 million
Cats - 94.2 million
Dogs - 89.7 million
Birds - 20.3 million
Saltwater Fish - 18.8 million
Small Animals - 14.0 million
Reptiles - 9.4 million
Horses - 7.6 million
These figures indicate that freshwater fish are the most numerous pets in the U.S., followed by cats and dogs. The high number of fish is attributed to individuals often keeping multiple fish as pets.
Pet Type
Number of Households (in millions)
Dogs - 65.1 millions
Cats - 46.5 millions
Freshwater Fish - 11.1 millions
Small Animals - 6.7 millions
Birds - 6.1 millions
Reptiles - 6.0 millions
Horses - 2.2 millions
Saltwater Fish - 2.2 millions
According to studies, including a major one published in Nature Communications and assessments from the IUCN (International Union for Conservation of Nature):
At least 63 species of birds, mammals, and reptiles have gone extinct due to cat predation—primarily on islands.
Most of these extinctions were caused by feral or free-roaming domestic cats.
Stephens Island wren (New Zealand)
Lyall’s wren
Guam kingfisher (extinct in the wild)
Several island-dwelling rodents and lizards
Cats are listed as a threat to at least 367 species (according to the IUCN and BirdLife International), including:
🐦 Birds: Small songbirds, shorebirds, and flightless species
🦎 Reptiles: Skinks, geckos, and iguanas
🐁 Mammals: Small marsupials and rodents, particularly on islands
Notable endangered species under threat:
Fairy tern (New Zealand)
Brush-tailed bettong (Australia)
Hawaiian petrel
Western ground parrot
Pygmy rabbit (U.S.)
A landmark 2013 study by the Smithsonian and U.S. Fish & Wildlife Service estimated:
Free-ranging domestic cats kill 1.3–4.0 billion birds annually in the U.S.
6.3–22.3 billion mammals killed each year in the U.S.
Cats are the #1 human-related cause of bird mortality (ahead of buildings and vehicles).
Discussion:
Should people be allowed to have outdoor cats? We are not allowed to have any other pet be an outdoor pet? Can you let your dog roam?
Approximately 920,000 shelter animals are euthanized annually in the U.S., including 390,000 dogs and 530,000 cats.
Pet dogs contribute to environmental degradation by disturbing wildlife, emitting carbon through pet food production, and polluting ecosystems with waste and chemicals.
Cities like Los Angeles face surging street cat populations, estimated between 1 to 3 million, due to factors like unaffordable pet care and housing instability.
It is estimated that approximately 10 million animals die each year in the United States due to abuse, neglect, or cruelty . This figure encompasses various forms of mistreatment, including abandonment, hoarding, and failure to provide essential care.
P.A.C.T. Act (2019)
The Preventing Animal Cruelty and Torture Act makes certain acts of animal cruelty federal crimes.
It criminalizes:
Crushing
Burning
Drowning
Suffocating
Impaling animals
Other serious harm (especially when filmed or shared)
Penalties: Up to 7 years in prison and/or fines.
Every U.S. state has laws prohibiting cruelty to animals, but they differ in definitions, penalties, and enforcement. Most states have:
Types of Animal Cruelty:
Neglect: Failure to provide food, water, shelter, vet care.
Abuse: Physical harm, torture, or overworking animals.
Abandonment: Leaving animals behind without proper care.
Animal Fighting: Dogfighting and cockfighting are illegal in all 50 states.
Felony vs Misdemeanor
All 50 states have felony provisions for severe animal cruelty.
Lesser offenses (like minor neglect) may be treated as misdemeanors.
Penalties Can Include:
Fines (ranging from hundreds to tens of thousands of dollars)
Jail or prison time
Community service
Animal ownership bans
Mandatory counseling
Repeat offenses
Abuse of service animals
Abuse in front of children
Abuse resulting in an animal's death
Organized animal fighting
Discussion:
Pet shops and new laws around impulse buying animals
Assignment:
Create 5-10 interview questions about pets. Go find a teacher or another adult and interview them about their pets. Your questions need to find out how did they get their pet, if they researched the pet before they got it, did they plan for it, were they prepared for that pet before they got it, did they know what they were getting into, has owning that pet created challenges in their life, and any extra questions you would like to ask.