[Narrator] It's late June, and the pups
are growing bigger and stronger.
They're starting to spend more and more
of their day outside.
Blackspot barely leaves, and remains
faithfully by their side.
And, she's even nursing the pups.
She could only do this if she'd had
pups of her own, somewhere
out on the tundra,
before she joined the pack.
But where are her pups now?
And where is her mate?
It's clear that a deep and meaningful bond
runs between Snow White and Blackspot.
Why else would they share
life's special gift?
Whatever is in their
past, something powerful
compels Blackspot to care
for Snow White's pups,
and treat them as her own.
Having two females nurse the same litter
is exceedingly rare.
It's a behavior that's
never been filmed before.
It's no wonder the pups are thriving.
(soothing music)
But this happy arrangement of the pups
having two mothers will prove to be even
more significant as the
arctic Summer wears on.
