are rats related to mice – Radon Zone

Question: are rats related to mice
- Keywords:
  mice,
  rat,
  related
Asked by CrazyDugge123456 to Reka on 17 Nov 2016.
- Reka Nagy answered on 17 Nov 2016:
  
  Yes – they are what is called ‘sister species’, which means that they are each other’s closest genetic relatives!

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