Artistic reconstruction of the herd-instinct in the community of Ernietta. Credit: Dave Mazierski
More than 540 million years ago, primitive organisms would have looked like as a frilled tulip flowers for communal meals at the underwater party,” said the fossils were found in Namibia in southern africa.
Search for fossils at various locations, it turned out that the ancient creatures, known as Ernietta can be found at the bottom of the ocean during the Ediacaran period (635 million to 541 million years ago).
Recently, researchers have investigated why these organisms, and is one of the earliest forms of life on Earth, can be gathered into groups, only to find out that it has something to do with the way the soft, cup-shaped Ernietta power. [Picture: Strange, Primordial Sea Creatures, Dominated by the Ediacaran Era]
The scientists suspect these are in the fossil record, which is Ernietta people to be buried in the bottom of their baggy bodies in the silty soils, which have a higher collar, is exposed to the running water.
For the study, the researchers created 3D digital models of it is partially buried in Ernietta, subject to models and variable water flows. In addition, the researchers hope to find out Ernietta feeding practices and the interpretation of ancient sea animals’ preference for the group, which, according to the study.
First of all, the scientists studied the water around people. The researchers found that, Ernietta is focused, running water and a central body cavity, which is likely to be where nutrients were absorbed, said lead study author, Brandt Gibson, a geobiologist, and a phd candidate at Vanderbilt University in Nashville, Tennessee.
Although it is unclear as to how Ernietta trapped food particles, “we can expect it to have the anatomical forces of the body cavity, which was probably for the use of the nutrients in the water,” Gibson told Live Science.
The next step is for the researchers to see what was going on when the water is flowing around a cluster of Ernietta.
“We started out with a stack of them in a variety of arrangements, and altered the distance between them, and how that affected the fluid flow patterns,” Gibson explained.
The researchers found that when the water is flowing around the many of the Ernietta bodies, the lake was choppy, and the distribution of nutrients, so the food is reaching the individuals, who have been down the road. At the same time, it is churning out has helped to spread the waste created by Ernietta residential-production and execution of their environment, the researchers reported.
This is one of the oldest well-known example in the fossil record is that of commensalism, a phenomenon in which one organism benefits, the safe is of a different, Gibson said.
Like most of the simple, soft-bodied organisms which evolved during the Ediacaran, Ernietta is not thought of as animals. However, with their common eating style is similar to that of some of the animals living today, said study co-author Simon Darroch, an assistant professor in the Department of Earth and Environmental Sciences at Vanderbilt University.
“In terms of the closest analogues we can say from our study is that they have to act like clams or oysters, live gregariously in a way that helps them together to feed,” Darroch told Science in an e-mail.
However, as mussels, oysters and running the pump, the water in the feed, Ernietta, probably, were passive feeders, which are used in the movement of the water currents to provide their food and carry waste products away, Gibson added.
Modern sea creatures seem to be in Ernietta, but that they live and feed on each other, because that behavior benefits the entire group, Darroch said.
“If you’re in a stationary suspension-feeder, then we have to live, and to interfere with the normal flow patterns and can be a great thing,” he said.
The findings are published online today (June 19) in the journal of the Science of the times.
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Originally published on Live Science.