The video explores the concept of extinction, tracing its history from early naturalists to modern science. It discusses past mass extinctions and highlights the current sixth mass extinction driven by human activities. The impact of habitat destruction, climate change, and invasive species on biodiversity is examined. The video emphasizes the importance of conservation and the interconnectedness of all species, urging the use of technology to mitigate human impact.

Who was the first to propose that fossils were from extinct species rather than undiscovered living ones?

• Stuart Pimm

• George Cuvier

• Walter Alvarez

• Charles Darwin

What significant discovery supported the Alvarez hypothesis about the extinction of dinosaurs?

• The woolly mammoth fossils

• The Lascaux cave paintings

• The Great Dying

• The Chicxulub crater

What term is used to describe the current geological epoch characterized by significant human impact on Earth's geology and ecosystems?

• Holocene

• Anthropocene

• Cretaceous

• Pleistocene

What is the primary cause of the current sixth mass extinction?

• Human population growth and consumption

• Volcanic eruptions

• Asteroid impacts

• Natural climate cycles

Which of the following is NOT a major threat to species survival mentioned in the video?

• Natural selection

• Habitat destruction

• Climate change

• Invasive species

What is the impact of increased CO2 levels on ocean species?

• Increased biodiversity

• Ocean acidification

• Decreased water temperature

• Expansion of coral reefs

Why is it important to preserve even the smallest and least charismatic species?

• They are more resilient to climate change

• They have no impact on ecosystems

• They are easier to conserve

• They are bound by invisible connections to all life