As living conditions improve and the science of medicine advances, the longevity of the average American has increased greatly, from about 45 years in to over 75 years today. But the most impressive human longevity is nothing compared to the year lifespan of an ocean clam found near Iceland, or the 5,year lifespan of the bristlecone pine, a tree found in the western U. We may use longevity to talk not only about actual lives but also of the useful "life" of things: the life of your car's tires or the shingles on your roof, for example. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'longevity. Send us feedback. See more words from the same year.
O ld age demands to be taken very seriously—and it usually gets its way. That, as it turns out, might be our first mistake. A clam dredged from the ocean off Iceland in —and inadvertently killed by the scientists who discovered it—carried growth lines on its shell indicating it had been around since That was enough time for , generations of mayfly—which live as little as a day—to come and go. Neither clam nor fly gave a thought to that mortal math.