The mantis shrimp possesses one of the most complex visual systems in the animal kingdom. While humans have three types of color receptors, the mantis shrimp has sixteen. Researchers initially assumed this meant the shrimp could perceive an extraordinary range of colors. Surprisingly, behavioral tests later showed that mantis shrimp actually discriminate colors less precisely than humans do.
Which choice best describes the function of the last sentence in the text?
- A
It introduces an unrelated species for comparison.
- Bcheck_circle
It complicates the expectation set up by the previous sentence.
- C
It provides a definition of color perception.
- D
It confirms the researchers' initial assumption about the mantis shrimp's vision.
Explanation
The final sentence reverses the expectation that more receptors means better color discrimination. B captures this complication. A is the opposite of what happens; C and D misread the sentence.