In the March 31 SN: How opioid overdoses kill, vaccines in conservation, signals from the first stars, termites get demoted, Jupiter’s latest surprises, viral titans visualized, Google hits 72 qubits and more.
TAIL TATS When researchers tattooed mouse tails, the only cells found with ink inside were macrophages. The tattoo appeared the same before (left) and after (right) ink-holding macrophages were killed, because it was recaptured by new macrophages.
A. Baranska et al/J. Expt. Med. 2018
SKIN WINStaphylococcus epidermidis, a species of bacteria that lives on human skin, grows here in a dish. Strains of this bacteria make a cancer-fighting compound that stops DNA synthesis.