A biotech company recently announced that it's implanted another pig kidney into a human recipient. Here's what to know.

A milestone was reached in animal ... living pig organ but by making a pig kidney possible for patients waiting (and some dying) on the transplant list, a new option and hope for life," the ...

While the initial results are promising, Peter Friend, an organ transplant specialist at the University of Oxford, tells New Scientist that the best way to gauge the health of the animals’ organs ...

Cells are the smallest unit of life. Cells in multicellular plants and animals are arranged into tissues, organs and organ systems. Cells. Tissues. Organs. Organ systems. And the organism itself.