Well, one species of animal is actually immortal! Immortality means 'eternal life', which is the ability to live forever! The
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.
Anything that tries to kill a tardigrade will quickly realize they encountered practically immortal animals. These creatures are capable of sticking around for thousands of years or even indefinitely “by entering a state of cryptobiosis, whereby their metabolism comes to a halt,” says Pastor.
Lobsters have an extraordinary lifespan due to an enzyme called 'telomerase' in many of their cells. Telomerase restores the length of telomeres, increasing the number of divisions a cell can make before it dies or becomes inactive.
Theoretically, this process can go on indefinitely, effectively rendering the jellyfish biologically immortal, although in practice individuals can still die. In nature, most Turritopsis dohrnii are likely to succumb to predation or disease in the medusa stage without reverting to the polyp form.
Wild species can live anywhere from a few days to decades. One species in particular, dubbed the 'Immortal Jellyfish' (Turritopsis dohrnii) may actually live forever. This jellyfish is more likely to die at the hands (or mouth) of a turtle or fish, than from old age.
The tentacles of the jellyfish have tiny stingers called nematocysts which can detach, stick to skin, and release venom. Even if the jellyfish is dead, it can still sting you because the cell structure of nematocysts is maintained long after death.
For starters, lobsters don't scream when you boil them. In fact, they lack lungs and don't even have the proper biological equipment to form a scream. What you hear is air and steam escaping from the shells of their simmering suppers.
The oldest lobster ever recorded is believed to have been caught off the coast of Maine in 2017. The lobster was estimated to be between 140 and 150 years old, making it the oldest lobster ever recorded.
Research has clearly shown that lobsters, crabs, and other crustaceans can and do experience pain. Scientists have shown that their reaction to painful stimuli is more than just a reflex response and instead, they learn from painful stimuli and change their behavior.
Flatworms, nematodes, and cnidarians (jellyfish, sea anemones, and corals) do not have a circulatory system and thus do not have blood. Their body cavity has no lining or fluid within it. They obtain nutrients and oxygen directly from the water that they live . Q.
Blue blood is found in octopuses and horseshoe crabs. This is due to the fact that hemocyanin, the protein that transports oxygen in their blood, is blue. Octopuses have three hearts, which is due in part to their blue blood.
The kangaroo rat's kidneys are so efficient that it never needs to drink water. It gets all of its liquid from the plants, roots, and seeds it eats. Nonetheless, it is sufficient to keep the kangaroo rat alive.
Tardigrades are among the most resilient animals known, with individual species able to survive extreme conditions – such as exposure to extreme temperatures, extreme pressures (both high and low), air deprivation, radiation, dehydration, and starvation – that would quickly kill most other known forms of life.
Spiders usually have eight eyes but few have good eyesight.
They rely instead on touch, vibration and taste stimuli to navigate and find their prey.
In the end, there will be tardigrades. If a cataclysm wipes out most of life on the planet — including humans — it's likely that tardigrades will survive. These oddly cute microscopic animals are among the toughest creatures on Earth.
The American lobster can live to at least 100 years, however like other organisms, they eventually die. A lobster that lives to 100 years old can grow up to 4 feet.
George the lobster was a "sort of mascot" for City Crab and Seafood in New York. The lobster, which PETA said was 140 years old and weighed 20 pounds, had been confined to a tank at City Crab and Seafood restaurant in Manhattan when two customers alerted the animal group.
Aquarium studies suggest a 1-pound lobster is 5-7 years old.
For those who love them on a plate, there was plenty of outrage that a country would ban such a practice. Sources in Maine tell me there is no other way to prepare a lobster. Switzerland is not the first to ban the practice. In fact, boiling lobsters alive has been outlawed in the United States since at least 1999.
[and] feels all the pain until its nervous system is destroyed. Jaren G. Horsley PhD. Scientists have found that it can take lobsters between 35 – 45 seconds to die when plunged into a pot of boiling water — and if they are dismembered their nervous system can still function for up to an hour.
Whether it is believed the lobsters experience pain or not, killing the lobster just before cooking is the preferred method.
Despite what you may have heard, it's a myth that peeing on a jellyfish sting does anything to ease the pain. Not only are there no studies to support this idea, but urine may actually worsen the sting, too.
Jellyfish sting their prey with their tentacles, releasing a venom that paralyzes their targets. Jellyfish don't go after humans, but someone who swims up against or touches one — or even steps on a dead one — can be stung all the same.
Wear some type of protective footwear when walking on the beach, because jellyfish—as well as any detached tentacles—can be difficult to spot. Don't depend on a wetsuit or coating your body with petroleum jelly to protect you. These may help, but they are not sting-proof.