Although the subspecies of painted turtle intergrade (blend together) at range boundaries they are distinct within the hearts of their ranges. 1  The male eastern painted turtle (C. 2  The midland painted turtle (C. 3  The southern painted turtle 4  (C. The largest subspecies is the western painted turtle  (C.
In some cultures in the Northern Hemisphere, the astronomical March equinox (varying between 19 and 21 March) is taken to mark the first day of spring, and the Northern solstice (around 21 June) is taken as the first day of summer. In other traditions, the equinox is taken as mid-spring.
Full Answer. Use of the Gregorian calendar keeps the arrival of spring on March 20 or March 21 for most years, though sometimes spring arrives on March 19. According to National Geographic, in addition to the astronomical start of spring, a biological spring begins each year, usually on a different date.