Noble and Alex Pozhitkov have made a remarkable discovery about the behavior of cells after an organism’s death. Their experiments with frog skin cells, known as “xenobots,” revealed an ...

The alkaloid chemicals that poison dart frogs wield on their skin increase the variety of microbial ... the DHQ carbon atoms into their own cells. “It does seem like [the bacteria are] using ...

Created from frog stem cells, the xenobots are less than a millimeter ... The bio-robots have skin and a heart muscle that lets them move around. They can self-heal if needed, and they can ...

Xenobots were first born when scientists extracted skin stem cells from frog embryos and cultured them in salt water. All on their own, the cells clumped together and cells on the outside of these ...

Like many amphibians, the European brown frog produces a range of peptides on its skin, substances that can fend off harmful microbes and prevent infection. This skin—with its intricate mixture ...

Glass frogs also have a unique circulatory system, with veins that are closer to the surface of the skin. This allows the oxygen-rich blood to be visible through the skin ...

Wood frogs (Lithobates sylvaticus) are generally around 3 inches long with brown or grey bumpy skin. Their distinguishing ... This includes puncturing blood vessels, cell dehydration (as water ...

The species in this group include frogs, toads ... Too much sun can damage their cells. Too much wind can dry their skin and dehydrate the animal. As a result, amphibians are the first to die ...