Most lizards lay eggs, though a few species are capable of live birth such as the Slow Worm, a legless lizard that resembles a small snake. Slow Worms reproduce from eggs which the female incubates within her body. The incubation period is about 90 to 100 days.
People taking Social Security early can earn up to $15,720 in income in 2016 without being penalized. Source: Flickr user 401kcalculator.org. Because the average American's income has made little headway over the past decade and employers have shifted away from pensions, many Americans have fallen behind on their retirement savings goals.
I do not believe it's a question of how many hours, but how much you can earn without it affecting your social security. I believe the the figure at present is $14,999.00. Any more than that can affect your social security. However, this is only for those who have retired early (starting at age 62).