We're all familiar with the outward signs of aging. The face that greets you in the mirror each morning may have sagging skin ...

is seen in the clip as she weighs up her options of what to eat - before pawing at a broccoli floret. The black-and-white ruffed lemur is the largest member of the Lemuridae family; weighing up ...

One group of animals was offered food if they were awake and active ... deeper torpor bouts. By contrast, lemurs that “woke up” to eat had telomere lengths that remained relatively stable ...