Someone to Watch Over Us  by John Banovich

 

"Known to be very good mothers, the female polar bears typically produce two to three cubs, but rarely does more than one survive their first year. This mother has been lucky enough to rear three into their second year, and by now has taught them most things they will need to know to survive in such an extreme environment. Her vigilance knows no limits when protecting her young, and she can even drive away a large male that outweighs her by nearly a third." - John Banovich.