NY Times Crossword
September 14, 2011
Jeff Chen

The answers to the clues below will have something in common.

1. Law of the jungle
2. Home seeker's decision
3. Double agent and Mad Magazine feature
3. Argument over which is more important in human development -  genetics or environment

Answers:

1. Predator vs Prey
2. Rent vs Buy
3. Spy vs Spy
4. Nature vs Nurture