Final answer:
The word 'task' is the most fitting synonym to replace 'thing' in the sentence about human precision in throwing, as it offers clarity and specificity in accordance with the guidance to use more concrete nouns.
Step-by-step explanation:
To enhance the clarity and specificity of the sentence concerning human ability in throwing objects, the generic noun 'thing' can be replaced with a more precise synonym. Based on the context provided, 'task' seems to be the most appropriate synonym from the thesaurus entry offered, which includes 'concept,' 'substance,' and 'task.' Thus, the revised sentence is: "Scientists have discovered that there's at least one task humans excel at compared to other species: we can throw objects with stunning precision, thanks to the structure of the hand and wrist." This modification adheres to the advice of using concrete nouns for better visualization and comprehension.
When describing abilities or actions, selecting concrete and specific nouns provides the reader with a clearer picture of the subject matter. In this case, 'task' denotes an action or activity, which is more tangible to readers and relates directly to the action of throwing, thereby improving the sentence's descriptive quality. This aligns with the guidance suggesting we replace general nouns with more concrete terms to close the conceptual gap between writer and reader, ensuring the reader can easily grasp the nuances of the message conveyed.