What’s Up With Those Bright Blue Eggs?

The video explores the mystery of why some birds lay blue eggs. It discusses various hypotheses, including mate quality signaling, protection from predators, and UV radiation shielding. The pigment Bill of Verdon is responsible for the blue hue. Studies show mixed results on whether blue eggs influence male bird behavior. The video concludes that blue eggs may offer multiple benefits, such as shell strengthening, and highlights the evolutionary advantages of cerulean shells.

What pigment is responsible for the blue color of some bird eggs?

• Melanin

• Chlorophyll

• Carotene

• Bill of Verdon

Which hypothesis suggests that blue eggs indicate a higher quality mate?

• Nutrient Rich Hypothesis

• Camouflage Hypothesis

• Mate Quality Hypothesis

• Predator Deterrence Hypothesis

What is the 'blackmail hypothesis' in relation to blue bird eggs?

• It proposes that blue eggs are more nutritious.

• It suggests that blue eggs are harder to see.

• It implies that brighter eggs require more male protection.

• It indicates that blue eggs are more attractive to predators.

How might blue eggs benefit from UV protection?

• By increasing the eggs' nutritional value.

• By filtering out harmful UV rays.

• By making the eggs more visible to predators.

• By making the eggs more colorful.

What is a potential downside of increased blueness in bird eggs?

• Reduced mate attraction.

• Higher absorption of infrared radiation.

• Increased visibility to predators.

• Decreased shell strength.