"Mere specks" refers to tiny or insignificant things, often referring to small particles or objects that are so small that they appear as if they do not hold much importance or value. Full definition
These presented landscapes and storyline scenarios are all worth inhabiting because they, as the title of the show suggests, remind us that the Earth and we humans are mere specks in something larger. (sfaq.us)
These 450 precious gem islands, set in a sea of shimmering aquamarine, range from mere specks of coral awash a high tide, to exotic resorts. (enjoy-belize.com)
The trips are to two offshore islands, mere specks on the map, in the Channel Island National Park system. (articles.latimes.com)