Monkeys teach their young how to floss their teeth

Female monkeys in Thailand have been observed showing their young how to floss their teeth - using human hair. Researchers from Japan said they watched seven long-tailed macaques cleaning the spaces between their teeth in the same manner as humans.

They spent double the amount of time flossing when they were being watched by their infants, the team said. This suggests the mothers were deliberately teaching their young how to floss...

Wonderful - except for that part about using human hair to floss...