We are praying under a cold sky with a temperature of -10 degrees Celsius.
As a joke, we are measuring the sleeping breaths of brown bears.

There is a ventilation hole on the roof of the animal house.
From here, you can see how the brown bears sleep during the winter.
Because it slows down metabolism, breathing rate also decreases.
They only breathe about 2-3 times per minute.
Check by holding one side of the tube visible at T time with your hand and holding the other side to your ear.
Whether it's a sunny day or a blizzard, this is an essential and important task.

In captivity, they hibernate in groups during the winter.
Bear Mountain is the only place in the world.
This year is our 8th winter.