If asked which is the oldest animal on the earth, then very few people will be able to answer it. Many people may answer this dinosaur. But, this is not the correct answer. So we try to know which can be the oldest animal on earth? Also, you know what research has been done about the oldest animal…
Today, there are big and small, colorful, colorless, animals of different sizes on the earth. There are many species from micro -organisms such as tardigrade to giant fish like blue whales. But scientists are still in confusion about the oldest animal on Earth. The list of oldest animals developed on Earth includes organisms like sponges, funisia, dicinsonia, but according to scientists the first animal is Komb Jelly. According to a study on Chromosome of Komb Jellyfish in 2023, they can be the oldest animals.
Most of the creatures developed in Cambrian era
The study of 54 million years old Fossils gives information about the creatures of the Cambrian era. During this period, millions of new species of animals were produced in one crore years, including the first arthropod, Mollusk and the father of Vritibrates, Cordate. Most of today’s animals have developed from them. This sample was taken from the protected Burges Shell Rock in British Columbia.
Why is it difficult to study?
In the 1950s, the first discovered phosils were identified as animals of the Ediyakaran period, 63 to 54 million years old. His body was soft and round, such as jellyfish, C anemone and sponge, etc. Because it was impossible to preserve their fossils due to sopt tissue, it is also difficult to study them. Elizabeth Turner, a peliobiologist at Laurentian University, Ontario, believes that there is no special pattern in the fossils of the early animals.
Debate between sponge and comb jellyfish
According to Turner, according to a fossil of 89 million years old, sponge is the oldest animal. His paper was published in Nature magazine in the year 2021. However, many scientists do not agree on this. Now they can find their ancestors by doing research on the genome of modern animals with the help of molecular clock.
After a study in 2023 on the chromosome of modern tinophores or Komb jellyfish, it was said that they could be the oldest animals in the earth, which emerged 60 to 70 million years ago. The body of modern Komb Jellyfish is more complex. Their muscles and neural systems are more developed than sponges. For years, there has been a debate over the status of the oldest animal to both of them.
—- End —-