- Goose bumps evolved to make human ancestors’ hair stand up, making them appear more threatening to predators.
- Humans are the only animals with chins.
- As humans breathe, most of the air is going in and out of one nostril. Every few hours, the workload shifts to the other nostril.
- Human belly buttons grow special hairs to catch lint.
- Human's tongue is made up of eight interwoven muscles, similar in structure to an elephant’s trunk or an octopus’s tentacle.
facts from https://www.mentalfloss.com/article/570937/facts-about-the-human-body
awesome! comics from https://manfriedtheman.tumblr.com
