The keepers of Henry, a tuatara, had thought he was past his prime - especially after showing no interest in females during 40 years in captivity. But he mated with 80-year-old Mildred last July and 11 of the eggs she produced have now hatched.
It's perhaps the most controversial religious artefact in the world. The Shroud of Turin cloth that supposedly wrapped Jesus's body after the crucifixion and became imprinted with his image, has intrigued millions of believers and sceptics alike.
The brains of our closest relatives, unlike our own, do not shrink with age. The findings suggest that humans are more vulnerable than chimpanzees to age-related diseases because we live relatively longer.
Middle age can be a testing time. Mounting responsibilities, falling energy levels and the knowledge that youth is fast receding and old age is the next stage are the classic ingredients for a mid-life crisis.
They say the lengths of tiny pieces of DNA called telomeres indicate whether a young creature is likely to live long into old age. ... Everything that is made up of living cells contains chromosomes: the genetic code that makes us what we are. At the ends of each chromosome lie the telomeres. They have been likened to the caps on the ends of shoelaces - they stop things from unravelling. Over time they wear down - and when they do, the DNA...