The largest animal that has ever lived—the blue whale—is one most people never see in person. This rare footage of a mother and calf in the Antarctic is a glimpse into the slow recovery of the endangered species.
News of the death of Cu Rua, or "Great Grandfather Turtle" in Hanoi, Vietnam has brought widespread grief. The population of the critically endangered Yangtze giant softshell turtle now stands at three.
On Monday the World Health Organization declared the Zika virus a global emergency, calling for a coordinated international response to control mosquito populations. Funding and research will likely increase in an effort to control the outbreak—which has the potential to infect as many as 4 million this year.