DEFINITION of 'Industrial Revolution'. A period of major industrialization that took place during the late 1700s and early 1800s. The Industrial Revolution, beginning in Great Britain, quickly spread throughout the world.uring the Industrial Revolution, workers came to cities in droves to look for employment in the new factories. Because the industrial system was new, there were no experienced workers, and thus everyone had an opportunity to find employment. Technological advancement followed, which increased overall production.
Gestation. Giraffes are pregnant for a period between 14 and 15 months, or 453 to 464 days, one of longest gestation periods in the animal kingdom. Giraffes usually give birth to one offspring at a time, although twins are born occasionally.Because the gestation period is so long, the giraffe won't give birth to another baby for 16 months or more.iraffes usually give birth to one offspring at a time, although twins are born occasionally. Because the gestation period is so long, the giraffe won't give birth to another baby for 16 months or more.
How long is a female lion pregnant before she gives birth? The average gestation period for Lions is around 110 days. The female gives birth to a litter of one to four cubs in a secluded den usually away from the rest of the pride.