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.
1 Pelvic inflammatory disease where BV bacteria infect the uterus or fallopian tubes. 2  Pelvic inflammatory disease can cause infertility and increase the risk of ectopic (tubal) pregnancy. 3  An infection after a procedure on the female organs. 4  This includes cesarean section, abortion, and surgery on the cervix or uterus.