A new book offers a valuable discussion of the double bind in which many researchers and lab technicians find themselves: having to care for animals who will then be killed.

This is no puff piece. Researchers have uncovered the fact that a popular food dye used in Cheetos can turn mice’s skin completely transparent — making their organs visible.. A coloring agent ...

“From a practical perspective, it’s negligible.” Male mice exhibited more unpredictable behavior than females did. Hormones in males also fluctuate, typically changing over the course of a day.