熊蟄穴 When bears begin to hibernate
The Japanese year used to be divided into 72 "micro-seasons". These seasons were based on natural events such as the weather and the appearance of various plants and animals.
Next week is the start of 熊蟄穴.
The kanji:
熊 = bear
蟄 = hibernation
穴 = hole, den
= the time when bears start their winter sleep in their dens.
via japanwords
