Aliens on Earth?: Placozoa Continue to Perplex Scientists

Although they might appear to be the simplest multi-celluar organisms on Earth, the mysterious creatures known as Placozoa continue to leave scientists scratching their heads over their origins, genetic makeup, and abilities, thus making them far from simple.

Placozoa are small, living, blobs of cells. They feed through their ‘skin’, can regenerate from only a small amount of cells, and reproduce asexually by splitting off parts of themselves. However, they have only rarely been observed in nature and scientists have yet to find any fossils of Placozoans.

placozoanImage of a Placozoa.

A new theory by our resident space biologist Allen Gringholm states that Placozoa are actually descendants of a massive blob of an alien which crashed into Earth millions of years ago.  Read more