'Dog Days of Summer"...So incredibly hot that even dogs are just lying around the house...that's what it means...right?!
That's what the term has come to represent, however, it actually has all to do with the stars in the heavens. The ancient Greeks looked to the skies and saw the constellation Canis Major as a dog chasing another group of stars - Lepus, the hare. The star Sirius is the dog’s nose; the Greeks called it the “dog star.”
The actual 'Dog Days' refer to the time when Sirius appeared to rise just before the sun, in late July...coinciding with the hottest time of the year, a period that could bring heat stroke, fires and other maladies and catastrophies.
Interesting...let's not even think about the origin of "sick puppie"!