Geography: Brown bears are the most widely distributed bears in the world. They are found in North America, Europe, and Asia. Two subspecies of brown bear are native to North America: the grizzly bear (U. a. horribilis) and the Kodiak bear (U. a. middendorffi).
Tubal ligation. 1  There is a slight risk of becoming pregnant after tubal ligation. This happens to about 5 out of 1,000 women after 1 year. 2  Pregnancy may occur if: The tubes grow back together or a new passage forms (recanalization) that allows an egg to be fertilized by sperm.
In some cases, after having your tubes tied, you can get pregnant when a small section of the fallopian tubes may grow back together. If this is the case, the egg could still travel through the tubes, where it could be met by sperm and become fertilized.n addition, it prevents sperm from reaching the fallopian tube. A tubal ligation is around 99.5% effective at preventing pregnancy. Still, it is not impossible for you to get pregnant with your tubes tied.