 Alternatively, if chicks cannot see the food choice, and their companion is simply a competitor for food, then DC individuals become more DC and only take the familiar food.
<coherence>  Alternatively, if chicks cannot see the food choice, and their companion is simply a competitor for food, then DC individuals become more DC and only take the familiar food.
 Alternatively, if chicks cannot see the food choice, and their companion is simply a competitor for food, then DC individuals become more so, and only take the familiar food.