Here's why they're special:
* Totipotent means they have the potential to develop into any cell type in the body, including the placenta and other supporting structures.
* These cells are found only in the very early stages of development, up to the 8-cell stage in humans.
* After this stage, cells become pluripotent, which means they can still become any cell type in the body, but not the supporting structures like the placenta.
Think of it like this:
* Totipotent cells are like a blank canvas, able to become anything.
* Pluripotent cells are like a painter's palette, with a wide range of colors but not the ability to create the frame for the painting.
So, to answer your question directly, the first few cells that form are totipotent because they have the amazing ability to become any type of cell.
