1.   Even if the galaxy is jammed with intelligent creatures, intelligence may tend to emerge only for brief periods.

2.   Had the dinosaurs remained pre-eminent and evolved into intelligent creatures, would they also be capable of science and religion?

3.   Maybe most intelligent creatures are dolphinoids, blissfully swimming in an alien ocean with little interest in building spaceships.

4.   We all care deeply about the intelligent creatures that have inspired this debate.

5.   When greater Hartford began growing brick and concrete, the crows, intelligent creatures that they are, adapted.

6.   And some anti-whaling groups argue whales should never be hunted because they are intelligent creatures.

7.   Opponents say whale population is uncertain, that harpooning is cruel, and that whales are intelligent creatures that should not be killed at all.

8.   Some argue that whales never should be hunted because they claim they are intelligent creatures that feel mental and physical suffering.