Usually 2 cubs
American black bears give birth while in winter dens near the beginning of the year, late January or early February. Cubs have high mortality, but if the cubs survive, they will stay with their mother for a year and a half, until June or July of their second summer. Because of this, female bears usually give birth only every other year.
Well polar bears can have at least 2 cub at birth, but I do not no how many cubs they can have per year.
Cubs learn to swim when they're around a year or two of age.
none black bears have no offspring in one year
Female polar bears usually breed once every two years. It takes that long for her cubs to mature enough to be on their own.
Polar bears are mammals, so they bear live young. What is different about polar bears is that the implantation of the fertilized egg is delayed until the time of year is right for cubs to be born. It takes 65 days from that time and cubs are usually born between November and January in the den.
1987 and im in fifth grade
The mother polar bear leaves her cubs to fend for themselves when they are around 3 years old. Then the mother bear would probably rear another litter in the same year or the subsequent year.
10-12
NO THEY DON'T. Think of it this way it is not like your mom would kill you. Actually, yes they do. Boar bears (male bears) have been known to actively go about and kill young cubs if they are not watched by their mother or if the mother has been scared off or beaten so badly that she can no longer defend them.
Because a female polar bear's gestational period can be about eight months, she can have between one to four cubs a year. This is the usual litter size for these animals. At birth, cubs can weigh about one pound.
No, they do not hibernate in the winter either. The female does enter a state of near hibernation for the winter months in a den where she bears her cubs. The male is active year round.