The video discusses the extinction of dinosaurs, attributing it to the limitations of egg size and the catastrophic effects of the Cretaceous-Tertiary asteroid impact. In contrast, mammals survived due to the larger size of their young and their reliance on maternal care.

What was a significant factor in the extinction of dinosaurs?

• The size of their eggs

• Predation by mammals

• Lack of food

• Climate change

What event is believed to have caused a nuclear winter leading to dinosaur extinction?

• Massive earthquakes

• Ice age

• Cretaceous-Tertiary asteroid impact

• Volcanic eruptions

What was the primary reason for the end of larger terrestrial dinosaurs?

• Competition with mammals

• Inability to adapt to new climates

• Nuclear winter from an asteroid impact

• Disease outbreaks

Which group of animals survived the extinction event due to the size of their young?

• Reptiles

• Birds

• Mammals

• Amphibians

Why were mammals able to survive the extinction event?

• They had a varied diet

• Their young were relatively large and dependent on maternal care

• They were smaller in size

• They lived in water