Lecture on Dogs

Introduction

• Purpose: Become a dog expert and learn cool facts about dogs
• Dogs are domesticated mammals
  • Domesticated means being taken care of by people
• Dogs were likely the first animals to be domesticated
• Popularity: ~43 million households in the US own at least one dog

Types of Dogs

• Over 150 Types of Dogs: Different sizes, appearances, and personalities
  • Example: Great Dane
    • Height: Up to 30 inches
    • Weight: Almost 200 pounds
    • Nickname: Gentle giants
  • Example: Chihuahua
    • Height: 6-9 inches
    • Small but with big personalities
  • Example: Dalmatian
    • Unique white coat with black spots
    • Born white; spots appear at ~4 weeks
  • Example: Pug
    • Small, wrinkly face
    • Gentle, great around kids

Dog Senses

• Vision: Dogs see colors differently
  • Humans: See full spectrum (reds, greens, etc.)
  • Dogs: See mostly yellows, browns, and blues
• Smell: Superior sense of smell
  • More smell receptors and larger olfactory brain region compared to humans

Puppies

• Baby Dogs: Puppies
  • Called puppies until 1 year old
  • Born blind, deaf, and toothless
  • Grow quickly and develop senses

Unique Facts

• Sweat: Dogs only sweat from their paws
  • Main cooling method: Panting

Conclusion

• Encouragement to share favorite dog facts
• Positive note about learning experience