Highlights. Scientists are trying to find out why some animals live so long, The jellyfish Turritopsis dohrnii has no brain and heart and is considered the only immortal creature on Earth By reducing the metabolic process, the Antarctic sponge can live upto 5,000 to 15,000 years.
Some corals can live for up to 5,000 years, making them the longest living animals on Earth. Scientific studies of elkhorn coral (Acropora palmata) in the Caribbean and off the coast of Florida show that coral genotypes can survive longer than expected.
Ocean Quahogs (Clams)
The ocean quahog is a species of edible clam, a marine bivalve mollusk. Ocean quahogs live in the Atlantic and can live more than 400 years old. At 507 years of age, Ming the clam broke the Guinness World Record as the oldest animal in the world.
The 'immortal' jellyfish, Turritopsis dohrnii
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.
1. Bowhead Whales – 200 Years.
Of those that do exist, the oldest-known jellyfish fossils, found in Utah, date to 505 million years ago and have enough detail to show clear relationships with some modern species of jellyfish.
How long does the immortal jellyfish live? Potentially forever. Which gets more impressive considering these creatures have been floating through the oceans long before the dinosaurs went extinct (66 million years ago) – it's biologically possible for a single immortal jellyfish to have been alive for this entire time.
1. Turritopsis dohrnii. The jellyfish Turritopsis dohrnii has no brain and heart and is considered the only immortal creature on Earth; it lives in tropical waters.
Turritopsis dohrnii: potentially immortal
Turritopsis dohrnii is called the immortal jellyfish because it can potentially live forever. Jellyfish start life as larvae before establishing themselves on the seafloor and transforming into polyps.
Under exceptional conditions, some individuals of wood-boring beetles (Cerambycidae and Buprestidae) have the longest life cycle. One Buprestis aurulenta larva emerged after 51 years. Three species of 17-year periodical cicadas, Magicicada septendecim, M.
Regenerating flatworms
This apparently limitless regeneration also applies to aging and damaged tissue, allowing the worms to cheat death indefinitely, according to a study at the University of Nottingham.
Can jellyfish feel pain? Jellyfish don't feel pain in the same way that humans would. They do not possess a brain, heart, bones or a respiratory system. They are 95% water and contain only a basic network of neurons that allow them to sense their environment.
Lacking brains, blood, or even hearts, jellyfish are pretty simple critters. They are composed of three layers: an outer layer, called the epidermis; a middle layer made of a thick, elastic, jelly-like substance called mesoglea; and an inner layer, called the gastrodermis.
Sharks are older than trees and dinosaurs
The earliest evidence of shark fossils dates back as far as 450 million years, which means these creatures have been around at least 90 million years before trees and 190 million years before dinosaurs.
This means that their ability to successfully produce young can be dependent on each individual being able to live a long time. Wisdom, a 69-year-old female Laysan Albatross that currently holds the record as the oldest-known wild bird, may have produced as many as 36 chicks over the course of her life.
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.
Dead jellyfish still have venom in their tentacles that can sting on contact.
Are jellyfish conscious? Jellyfish have no brains and therefore are not aware of their own existence. So no, while alive they are not “conscious”.
For scientists, however, jellyfish are fascinating research subjects – they play important roles in the marine ecosystem and are a key source of food for some fish and sea turtles. Some even protect commercially valuable species, such as oysters, from predators.
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.
Did anyone know that some animals have blue blood, especially when it is exposed to oxygen? Can you guess what animals might have blue blood? Lobsters, crabs, pillbugs, shrimp, octopus, crayfish, scallops, barnacles, snails, small worms (except earthworms), clams, squid, slugs, mussels, horseshoe crabs, most spiders.
Snails have more teeth than any animal.
This is TRUE. A snail's mouth is no larger than the head of a pin, but can have over 25,000 teeth (but these aren't like regular teeth, they are on its tongue).
Researchers believe the record for shortest adult life span belongs to the female mayfly called Dolania americana. After spending a year or more living on the bottom of a stream in its aquatic nymph form, it emerges as a flying adult — and lives for less than five minutes.
They have the shortest lifespan of all the animals. Complete step by step answer: The lifespan of a mayfly is 1 day. The life cycle of mayflies passes through four stages: egg, nymph, subimago, and imago.