Researchers tracking wild polar bears in northern Canada witnessed something exceedingly rare this fall: a mother bear adopting a cub that was not biologically her own.
The five-year-old mother bear and her 10- to 11-month-old cubs were observed…
Researchers tracking wild polar bears in northern Canada witnessed something exceedingly rare this fall: a mother bear adopting a cub that was not biologically her own.
The five-year-old mother bear and her 10- to 11-month-old cubs were observed…