Better senses have a positive impact on an animal 's survival.
Sense of smell is the ability to detect odors.
Better ability to detect odors has a positive impact on an animal's survival.
What better ability has a positive impact on an animal's survival?

1: traits
2: detect crimes
3: detect blankets
4: four limbs
5: sensory neurons
6: detect odors
7: it can be seen
8: detect internet