A Brave Butterfly

Years ago, a person went for a stroll in the mountains when suddenly a butterfly flew in front of him, blocking his way. He stopped, and the butterfly also stopped. He was curious to find out the reason, and then he noticed a wounded butterfly lying in front of him. This incident showed that butterflies have a sense of self-preservation just like humans. However, scientists do not study butterflies as they are considered small animals.
As humans, we know how to protect ourselves and others. But, there are still many dangers that we do not know about. For instance, when we get cancer, we often do not know why. Coldly thinking, not everyone will get cancer; it is only those who lead an unhealthy lifestyle that are at risk. If we do not drink heavily, smoke excessively, we have a lesser chance of getting cancer. Living a decent life will protect us.