The planarian is nobody's idea of a genius. A flatworm shaped like a comma, it can be found wriggling through the muck of lakes and ponds worldwide. Its pin-size head has a microscopic structure that ...

Cells with nuclei bear certain similarities to simple archaeal cells, which may help clear up their fuzzy evolutionary past. When you purchase through links on our site, we may earn an affiliate ...

From the bizarre creatures in the depths of the oceans to the bacteria inside our bodies, all life on Earth consists of cells. But we have only a very rough idea of how even the simplest of those ...

Only a handful of molecules and mechanisms can generate such a huge diversity of forms and complexity in multicellular organisms. Recently, researchers investigated how this is possible using a simple ...

The orientation of a line at a given position in visual space is represented by a small volume of primary visual cortex, known as an orientation column. Although cells within such a column share some ...

When scientists grow cells in culture, they fine tune factors such as medium ingredients, cell number, and incubator temperature to mimic the human body. However, one culture condition that ...

Simple epithelial cells synthesize a different set of keratins than epidermal cells. In experiments reported in this manuscript, we show that the base level of keratin expression in simple epithelial ...

For billions of years after the origin of life, the only living things on Earth were tiny, primitive cells resembling today’s bacteria. But then, more than 1.5 billion years ago, something remarkable ...