Marsupials and Their History

The video explores the history and distribution of marsupials, highlighting their origins in North America and Asia, and their migration to South America and Australia. It discusses fossil evidence, evolutionary history, and the extinction of North American marsupials. The video also touches on the role of competition with placental mammals and concludes with a promotion for Brilliant's interactive learning platform.

Which continent was historically a hotspot for marsupials before Australia?

• Africa

• North America

• Europe

• Asia

Where was the oldest known ancestor of marsupials discovered?

• South America

• Australia

• China

• North America

What is the scientific difference between possums and opossums?

• Possums are found in North America, opossums in Australia

• Possums are found in Australia, opossums in North and South America

• Possums are nocturnal, opossums are not

• Possums are larger than opossums

What event allowed marsupials to re-enter North America?

• The Ice Age

• The formation of the Isthmus of Panama

• The extinction of dinosaurs

• The separation of Pangaea

Which marsupial is currently found north of Mexico?

• Kangaroo

• Koala

• Tasmanian devil

• Virginia opossum

What is one hypothesis for the limited number of marsupials in North America today?

• Climate change

• Lack of food resources

• Predation by large birds

• Competition with placental mammals

What role do opossums play in understanding marsupial history?

• They are the most endangered marsupials

• They help trace the family history of marsupials

• They are the only marsupials that fly

• They are the largest marsupials

What is one feature of Brilliant's courses?

• They are only available offline

• They are free for all users

• They offer interactive learning experiences

• They focus solely on history

Which course is mentioned as being less abstract on Brilliant?

• Calculus in a Nutshell

• Chemistry Essentials

• Biology Basics

• Physics in a Nutshell

What discount is offered for an annual premium subscription to Brilliant?

• 20%

• 25%

• 15%

• 10%