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The Oldest Living Creatures 3/5

 

The previous part of the series The Oldest Living Creatures (2/5) ON THIS LINK (<- CLICK)

 

You may think that after a record of 5,000 years there are only mosses or lichens that could surpass it, but there are several species of animals that live longer than that.

Sponges are the most primitive form of animals; so simple that scientists have been arguing for decades should they be classified as plants.

The situation gets complicated by the fact that in nature they are often microscopically linked to photosynthetic algae.

However, they are classified as animals and several individuals live from 10,000 to 15,000 years.

 

In the picture: Glass sponges. Note – Cancer in the lower right corner is not part of the sponge.

 

The oldest ones live in sea depths over a kilometer in eternal darkness with an average temperature of 4 ° C. In such stable, unspoiled environment, all creatures live longer and have a slow metabolism: coastal fish live for 10 years, deep sea fish live over 100.

 

In the picture: Monorhaphis chuni, a species of sponges from the East China Sea, estimated to be 11,000 +/- 3,000 years old. Scientists are still researching the secrets of natural forces and millions of years of evolution that gave it the shape of a toilet brush.

 

 

In the picture: Huge barrel-like tropical sea sponges. Since they live in a much warmer environment with more food, they have a much shorter life span than their relatives from the deep: only 2000 years.

 

To justify their animal status, THIS VIDEO (<- CLICK) shows impressive pumping speed and spraying fluid filtration.

 

 

The sequel to the series The Oldest Living Creatures (4/5) ON THIS LINK (<- CLICK)

 

 

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