The red squirrel have a sense of smell,
that's millions of times better
than us simple humans.
it would be like if we only saw
in black and white, while they saw in
full color, including uv and ultraviolet.
Our sense of smell pale in comparison.
So even though it might look like
they are searching for food all the time,
they might not even be hungry.
They're simply "reading" the entire
environment around them, by smell.
From a single straw of grass,
they can tell what kind of animal
that has been there and if it was a squirrel,
they can tell exactly who, has been there,
if they're sick and what they had for dinner.
From a single drop of rain or a snowflake,
they can smell the air quality
from thousands of miles away
cause the wind carried it here.
Imagine if you could smell the morning air,
in the Siberian mountains,
simply by smelling the rain.