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. Read more
Turritopsis dohrnii, the so-called "immortal jellyfish," can hit the reset button and revert to an earlier developmental stage if it is injured or otherwise threatened. Like all jellyfish, Turritopsis dohrnii begins life as a larva, called a planula, which develops from a fertilized egg.
Scientists have discovered a jellyfish which can live forever. The Immortal Jellyfish known scientifically as Turritopsis dohrnii is now officially known as the only immortal creature. The secret to eternal life, as it turns out, is not just living a really, really long time.
When the medusa the immortal jellyfish (Turritopsis dohrnii) dies, it sinks to the ocean floor and begins to decay. Amazingly, its cells then reaggregate, not into a new medusa, but into polyps, and from these polyps emerge new jellyfish. ... This regeneration process has now been found in around five species of jellyfish.
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.
Leech has 32 brains. A leech's internal structure is segregated into 32 separate segments, and each of these segments has its own brain. Leech is an annelid.
It is possible some may live for over 1,000 years. The Greenland shark had been estimated to live to about 200 years, but a study published in 2016 found that a 5.02 m (16.5 ft) specimen was 392 ± 120 years old, resulting in a minimum age of 272 and a maximum of 512.
Where are immortal jellyfish found? Immortal jellyfish are thought to have originated in the Mediterranean Sea, however they are now found in oceans all around the world. It is thought this recently noticed invasion may have been predominantly caused by humans.
How does the immortal jellyfish (Turritopsis dohrnii) live for so long? A leading scientist explains all. The lifespan of a Greenland shark: up to 500 years.
turritopsis dohrnii Pronunciation. tur·ri·top·sis dohrni·i.
Just like butterflies, which that are born from the transformation of caterpillars, jellyfish are born by asexual reproduction from polyps that – unlike caterpillars – remain alive for many years.
Contrary to popular belief, lobsters are not immortal. Lobsters grow by moulting which requires a lot of energy, and the larger the shell the more energy is required. Eventually, the lobster will die from exhaustion during a moult.
The spell was originally conceived by "one of the most powerful witches of all time," Qetsiyah. However, after Silas manipulated Qetsiyah into creating a spell for immortality, he betrayed her by giving the elixir to his true love Amara, both becoming the world's first and only true immortals.
Aldabra Giant Tortoise // 189 years and counting
On the island of St. Helena in the southern Atlantic Ocean, a Seychelles giant tortoise (a subspecies of the Aldabra) named Jonathan currently holds the Guinness World Record as the oldest land animal at 189 years old and counting.
Jack Hills Zircon
The zircon crystals from Australia's Jack Hills are believed to be the oldest thing ever discovered on Earth. Researchers have dated the crystals to about 4.375 billion years ago, just 165 million years after the Earth formed.
Oldest land animal (living)
Jonathan, a Seychelles giant tortoise, is the oldest land animal alive in the world. He is believed to have been born in 1832, making him 189 years old in 2021. Originally from the Seychelles, he is a long-time resident of the remote South Atlantic island of St Helena.
Most of us can expect to live to around 80, some people defy expectations and live to be over 100. The oldest person in history, a French woman named Jeanne Calment lived to 122, but when she was born the average life expectancy was roughly 43. A recent study proposes that the limit to human lifespan is closer to 150.
The Hippopotamus has the strongest bite of all land animals at about 1820 PSI. American Alligators have a bite force of about 2125 PSI.
Snails: Even though their mouths are no larger than the head of a pin, they can have over 25,000 teeth over a lifetime – which are located on the tongue and continually lost and replaced like a shark!