The Future of Human Evolution

The video explores human evolution, highlighting natural selection and modern influences like medicine. It discusses lactose tolerance as a recent evolutionary change and predicts future human traits, such as shorter stature and smaller brains. The video also examines the role of complex societies in brain size reduction and the potential of genetic engineering to shape future evolution.

What is one way modern medicine can interfere with natural selection?

• By keeping people alive who might not survive otherwise

• By increasing the birth rate

• By reducing the need for physical labor

• By enhancing human intelligence

What evolutionary change allowed some humans to digest milk as adults?

• Development of larger brains

• Domestication of cattle

• Invention of agriculture

• Discovery of fire

According to the Framingham Heart Study, what traits might future women have?

• Shorter and heavier

• Taller and heavier

• Taller and lighter

• Shorter and lighter

Why might human brains be shrinking according to some scientists?

• Due to a lack of nutrition

• Due to increased physical activity

• Because of more complex societies

• As a result of climate change

What potential future development could allow humans to design their offspring?

• Advanced nutrition

• Genetic engineering

• Natural selection

• Improved education