Why is a dogs sense of smell better than ours???

Question: Why is a dogs sense of smell better than ours???
- Keywords:
  dog,
  smell
Asked by meganpartington21 to Duncan, Julie, Nik on 21 Mar 2013.
- Duncan Gaskin answered on 21 Mar 2013:
  
  Because it has more receptors in the region behind its nose called the ofactory bulb than we do and the bit of its brain devoted to processing information from these receptors is much larger than ours.

Question: Why is a dogs sense of smell better than ours???