Butterflies have good eyesight within 10-12 feet, but any farther, things look blurry. They also must rely on ultraviolet colors (invisible to the human eye) to find mates and the right flowers.
While the oldest footwear dates back only 8 millennia, current research suggests that we’ve been lacing up shoes or sandals for nearly 150,000 years.
Research studies have found knitting to be associated with reduced levels of stress2, subjective improvement in cognitive functioning3, and a lower risk of cognitive decline4, mild cognitive impairment5, and dementia6,7,
