In the example of giraffes, shorter necked giraffes will be less fit than longer necked giraffes in their competition for food in the tops of trees.
(shorter necked giraffes; will be; less fit than longer necked giraffes; L:in their competition for food in the tops of trees; L:In the example of giraffes)
shorter necked giraffes
will be
less fit than longer necked giraffes L:in their competition for food in the tops of trees L:In the example of giraffes