Meaning of the word "an ant may well destroy a whole dam" in English

What does "an ant may well destroy a whole dam" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

an ant may well destroy a whole dam

US /æn ænt meɪ wɛl dɪˈstrɔɪ ə hoʊl dæm/
UK /ən ænt meɪ wɛl dɪˈstrɔɪ ə həʊl dæm/
"an ant may well destroy a whole dam" picture

Idiom

a small problem or minor flaw can lead to a major disaster if left unaddressed

Example:
We should fix this minor leak immediately; remember that an ant may well destroy a whole dam.
Ignoring small errors in the code is dangerous because an ant may well destroy a whole dam.