what do we need to know about cockroaches
Bian Ying Xinにより
1. what does a cockroach not eat?
2. why are cockroaches always so dirty?
3. what are cockroaches afraid of?
4. Does Catnip or Deet work better on killing cockroaches?
4.1. Hypothesis: catnip works better than Deet
5. can cockroaches survive a fall from a very high building?
