Staying warm has a positive impact on an animal 's survival.
Animals that survive develop an immunity, but are also carriers for life.
Staying warm has a positive impact on an animal 's ability to be a carrier for life.
what has a positive impact on an animal 's ability to be a carrier for life?
* four limbs
* staying frosty
* staying isolated
* prolactin release
* staying warm
* staying mad
* coded genes
* organic molecules