This episode features:

-Why do we get goosebumps?

-Why do some people turn red when they drink alcohol?

-Do people around the world express emotion in the same way?

-Why are so many people afraid of snakes?

-If you have two siblings, can you be more genetically related to one than the other?

-Why do giraffes have long necks?

-Why do ostriches have wings?

-Did humans “evolve from” monkeys?