Why do dogs tilt their heads when you talk to them

a. the moon was locked into orbit by the earths gravity as it was passing by and capture hypothesis i think

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail

stable food supply,social structure, government,religion,culture/art,technology and writing/language;

answer; when circuit courts do not agree on a decision in similar fact pattern;