MIDAlpha TitleTitleYearColor/BWRunning TimeFormatsAbstractTopics
6093SENSE OF TIMINGSENSE OF TIMING1989color28 minvhs (Supersense series, Part 5) Nature is full of uncanny examples of the rhythmic cycle of life. Some varieties of birds, fish and crabs lay their eggs on virtually the same day every year. Honey bees arrive at flowers just as their petals open, and they can keep track of nine such openings a day. On the average, human females menstruate once per lunar month. Can all such coincidences by accidental? Animal timing is very much controlled by precision-made internal clocks, timepieces set by the rhythms of a natural world, but whose organic mechanisms are not yet well understood.