Dennis Hackethal’s Blog
My blog about philosophy, coding, and anything else that interests me.
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Dennis Hackethal
What are the other reasons for a dog's yelp when he is injured?
The main reason dogs yelp is that genes that coded for yelping spread through the population. One reason for this, in turn, could be that other dogs are programmed to come and help when they hear a dog yelping...
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