Categories Animals 12 Animals With The Longest Gestation Period Post author By adikaza Post date December 18, 2013 You might not know if a portly manatee is pregnant simply by looking at the animal, but this gentle giant carries its young for nearly 13 months. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 ← 20 Stunning Home Pools To Make You Dream About → 22 Stunning Basement Remodels