The oldest known individual animal is "Ming" the ocean quahog clam, who lived to be 507 years old before being discovered and unfortunately dying in 2006, but glass sponges are estimated to be the longest-living animals overall, potentially over 10,000 years, with one specimen estimated at 15,000 years. While clams hold the record for a single, dated individual, these deep-sea sponges are considered the longest-lived species, with some specimens potentially alive since the last ice age.
Glass sponges are considered the oldest animals on Earth—and it's by a long shot. Scientists estimate that they can live for more than 10,000 years, possibly 15,000 years maximum. One glass sponge observed by researchers in the Ross Sea, a bay of Antarctica, is thought to be the oldest living animal on the planet.
Jellyfish and comb jellies
Turritopsis dohrnii and Turritopsis nutricula, are small (5 millimeters (0.20 in)) species of jellyfish that use transdifferentiation to replenish cells after sexual reproduction. This cycle can repeat indefinitely, potentially rendering it biologically immortal.
African elephants are estimated to have a maximum lifespan of about 74 years, while their Asian elephant cousins can live up to about age 80. The world's oldest recorded elephant is thought to be an Asian elephant who lived to age 89 in captivity.
Deep-Sea Sponges
A deep-sea sponge can break the records of all living animals. It can live up to a thousand years. In fact, a study revealed that the oldest of the sponge samples collected lived for 11,000 years. During this time, the earth has just recovered from the Ice Age.
Leonardo da Vinci is often quoted as saying, "The elephant embodies righteousness, reason, and temperance," praising its noble traits like solemn bathing, guiding lost people, modest mating, and dying alone out of compassion to spare its herd pain, though these exact words are likely paraphrases or interpretations of his philosophy rather than direct transcriptions from his notebooks, according to deemag and chest clinic and Artsy.
It is often said that “elephants never forget”. Most elephant carers in Thailand, known as mahouts or Kwan-Chaangs, would tell you that their elephants certainly have exceptional memories! There is also a growing evidence base which suggests that elephants have even better memories than humans.
The hydrozoan Turritopsis dohrnii, an animal about 4.5 millimetres wide and tall (likely making it smaller than the nail on your little finger), can actually reverse its life cycle. It has been dubbed the immortal jellyfish.
I have named the mayfly Dolania americana the shortest lived among the Ephemeroptera with females typically living for less than five minutes (Sweeny & Vannote 1982).
The Amur leopard is one of the rarest big cats in the world, with only around 100 individuals left in the wild.
Horseshoe Crabs
Their ancestors first appeared in the Late Ordovician, around 445 Mya, though the modern group – Limulidae – didn't get started until the Early Triassic, around 250 Mya. Still, that makes today's horseshoe crabs older than dinosaurs.
Current measurements yield an age of about 4.54 billion years for the Earth and about 13.8 billion years for the Universe.
Deep-Sea Sponges
A deep-sea sponge can break the records of all living animals. It can live up to a thousand years. In fact, a study revealed that the oldest of the sponge samples collected lived for 11,000 years. During this time, the earth has just recovered from the Ice Age.
I have named the mayfly Dolania americana the shortest lived among the Ephemeroptera with females typically living for less than five minutes (Sweeny & Vannote 1982).
The Amur leopard is one of the rarest big cats in the world, with only around 100 individuals left in the wild.
Aquatic animals. Glass sponges found in the East China Sea and Southern Ocean have been estimated to be more than 10,000 years old. Although this may be an overestimate, this is likely the longest lived animal on Earth.
In 1 sextillion years (10²¹ years), the universe will be a vastly different, dark place: the era of star formation will have ended, all stars will have burned out into white dwarfs, neutron stars, or black holes, planets will be cold and lifeless, and even protons might begin to decay, leading towards the "Big Freeze" or heat death, with only black holes slowly evaporating via Hawking radiation over unimaginable timescales. All familiar structures, including galaxies, will have long dissolved as the universe expands, leaving behind a cold, dark, and nearly empty expanse.
No, no one has ever lived to be 200 years old with verified records; the oldest verified person was Jeanne Calment, who lived to 122 years and 164 days, but some scientists believe the first person to reach 200 may have already been born, given advancements in longevity research. Claims of much older ages, like Li Ching-yun (claimed 250+ years) or Peng Zu (claimed 800+ years), lack modern scientific verification.
The Sun is 93 million miles away, so sunlight takes 8 and 1/3 minutes to get to us. Not much changes about the Sun in so short a time, but it still means that when you look at the Sun, you see it as it was 8 minutes ago. Photo of the Sun in hydrogen-alpha light.
According to the Bible, the dinosaurs came before Adam and Eve. [25] And God made the beasts of the earth after their kind, and the cattle after their kind, and everything that creepeth upon the ground after its kind: and God saw that it was good.
Evidence suggests an asteroid impact was the main culprit. Volcanic eruptions that caused large-scale climate change may also have been involved, together with more gradual changes to Earth's climate that happened over millions of years.
Chickens are considered the closest living relatives of the mighty Tyrannosaurus rex, one of the most fearsome dinosaurs that ever lived. This connection is based on evolutionary biology and molecular studies. Birds evolved from theropod dinosaurs, a group that includes T. rex.