SciShow Talk Show - Selective Breeding & the Rat

The SciShow Talk Show features Nick Jenkins discussing the characteristics and history of Pembroke and Cardigan Welsh Corgis, emphasizing their roles as working dogs. The conversation shifts to selective breeding, highlighting its impact on dog breeds and the rapid variation it can produce. The discussion also touches on breeding instincts into dogs and the challenges of selective breeding, such as health issues. The episode concludes with a segment on selective breeding in rats, showcasing different traits and breeds.

What are the two types of corgis discussed in the video?

• Pembroke and Cardigan

• Beagle and Basset

• Welsh and Scottish

• Labrador and Golden

Why were corgis originally bred?

• For their cuteness

• As herding dogs

• For racing

• As guard dogs

What is a potential downside of selective breeding?

• Better temperament

• Longer lifespan

• Encouragement of diseases

• Increased intelligence

How does selective breeding differ from natural selection?

• It is less effective

• It results in fewer variations

• It occurs naturally over time

• It is faster and more controlled

What is a unique trait of corgis that helps them in herding?

• Curly fur

• Long tails

• Short legs

• Large size

What is a common characteristic of dogs that have been selectively bred?

• Uniform appearance

• Diverse body shapes

• Lack of instincts

• Inability to breed

Why might some dog breeds face health issues due to selective breeding?

• They are bred for intelligence

• They are bred for speed

• They are bred for size

• They are bred for specific traits

What is the main focus of Jesse's selective breeding program for rats?

• Increasing size

• Boosting intelligence

• Enhancing cuteness

• Improving survival skills

What are Dumbo rats known for?

• Large ears on the sides of their heads

• Extra long whiskers

• Curly tails

• Brightly colored fur

What is a Rex coat in rats?

• A type of pattern

• A size category

• A wavy fur texture

• A color variation