While many hatchling turtles are rather small, most species attain lengths in excess of 4 inches once mature. Contrary to the claims of ignorant or unscrupulous dealers who assert that turtles will remain small if kept in tiny enclosures, healthy turtles grow quickly when provided with proper care. Nevertheless, a few turtle species remain relatively small and are pretty easy to accommodate making for great compact turtle companions.
Moose generally give birth between May and June of each year. Their  gestation period is approximately 280 days and it is rare that they  give birth to twins. 1 person found this useful.
Source(s): http://www.infoplease.com/ipa/A0004723.h... The elephant gestation period (pregnancy) lasts about 22 months (630-660 days), and, yes, it is indeed the longest gestation period of any mammal. Some people said that the blue whale pregnancy last longer. This is not correct, since the blue whale pregnancy lasts only 11 months.