Animal Courtship and Disease Resistance

The video discusses how diseases are major killers, evolving rapidly and spreading easily among crowded animals. It highlights the impact of diseases on the immune system and their role in mate selection. In particular, birds in the Sierra Nevada mountains use health indicators like skin color to choose mates, reflecting strong genetics and immunity. The video also illustrates how diseases like tuberculosis can affect mating success.

What factors contribute to the rapid evolution of microbes and parasites?

• Lack of competition

• Stable environmental conditions

• Presence of larger animals

• Abundance of food

Why is disease resistance important in mate selection?

• It indicates a strong immune system

• It demonstrates good parenting skills

• It shows the ability to find food

• It reflects the ability to build nests

How do some creatures incorporate disease resistance into their courtship?

• By displaying physical traits

• By singing complex songs

• By building elaborate structures

• By gathering food for potential mates

What is the significance of healthy yellow skin pouches in birds?

• They help in flying long distances

• They are used for storing food

• They protect against predators

• They indicate fitness and quality

Where do Sage GRS gather to find their mates?

• In dense forests

• In open meeting places

• On mountain peaks

• Near water bodies

What condition does the male bird with tuberculosis suffer from?

• Inflamed and scarred skin tissues

• Inability to fly

• Weak vocalization

• Loss of feathers

What is the likely outcome for animals displaying strong immunity?

• Longer migration patterns

• Increased mating success

• Higher food consumption

• Isolation from the group