We usually assume that tissue folding (the process that creates organs, embryos, and the deep ridges of the human brain) requires complex internal control. So then how does one of the world’s simplest ...

DLR's MAPHEUS 9 sounding rocket carried four experiments into microgravity for approximately six minutes on 29 January 2022. The 1.7-tonne rocket lifted off from the Esrange Space Center in northern ...

Placozoa are among the simplest animals in the world. They were initially discovered living on the walls of aquariums in a European laboratory in the 1880s, and are thought to live naturally ...

New and comprehensive molecular research confirms a deep evolutionary division among animals. This new tree of life divides all so-called "lower" metazoans (Placozoa, corals, sponges, and jellyfish) ...

The simplest of all known non-parasitic multicellular animals, Placozoans are small, flat, three-layered organisms roughly one millimeter in diameter. They contain just four types of cells as well as ...

The animal kingdom has gained a cousin and lost a mother. In a fundamental reconfiguration of the tree of life, scientists now say that the last common animal ancestor is not — as was commonly ...