We recap the year in science news with Sarah Kaplan and Rachel Feltman.
The Department of Health and Human Services is conducting a "comprehensive review" of research involving fetal tissue—and has disrupted an HIV research program in the process.
Taking pleasure from someone else’s pain may make you feel like a jerk, but it’s a very natural emotion.
Countries are discussing carbon emissions in a new political (and changing) climate.
Does success in the urban jungle require dexterity or cleverness? Or both?