This handout image released by the Nature Publishing Group shows an artist’s reconstruction of Saccorhytus coronarius, a bag-like sea creature which lived about 540 million years ago . Interesting isn’t it ? Not only that, it is thought to be the earliest known prehistoric ancestor of humans.

Scientists have predicted that Humans earliest relatives were likely an egg-shaped creature that ate and expelled from the same gaping orifice some 540 million years ago. Scientists couldn’t find any anus in this species. The fossil of this creature was found in China’s Shaanxi province. They even speculated that Several major branches of evolution — one of them eventually leading to humans — began from this inconspicuous, sea-dwelling organism. Which means this creature represents the primitive beginning of various species including us too ! And yes,
Saccorhytus belongs to a broad category of organisms called deuterostomes, and is the most ancient specimen unearthed so far. Amazing isn’t it? And hold on! Guess what they even don’t have eyes. The researchers also suspect Saccorhytus had thin, flexible skin, along with a primitive musculature that allowed it to move around by wriggling
Finding the creatures was not easy. The scientists had to process enormous volumes of limestone approximately 3 tonnes to get the fossil. Once isolated, the samples were analysed with an electron microscope and a CT scan, allowing the team to build up an image of how the animal looked and lived. And the above picture depecits how it looks.

The period — during which all life existed in the oceans — ended with the first of five major extinction events over the next half billion years. Scientists even conclude that Earth is now experiencing a sixth mass die-off, caused by human impacts such as climate change.


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