Baby weasels hate "divorce" i.e. being separated apart

These two young female weasels really hate to be apart. Watch how a sister (sibling) weasel screams and panics when her sister is taken away. They so enjoy being together. This is actually very strange as it is believed that adult weasels live solitary lives in nature. These two sisters are young but already adults, thus capable to survive alone. Theoretically in the nature they are supposed to split up, but no... Maybe females make some communities? Another interesting moment here is that in this weasel litter there were 3 females and 1 male. Male had to be separated as he started seriously abusing his sisters. He did not seem to suffer being alone. But for sisters the separation is obviously very stressful.