ScienceRare Northern White Rhino on Threshold of Extinction: Angalifu Dies in San Diego Zoo Poaching has drastically reduced the population of the northern white rhinoceros. With the death of Angalifu at the San Diego Zoo Safari Park, there are now only five of this species left.by Rhodi Lee
ScienceHigh Demand for Sashimi, Sushi Pushes Pacific Bluefin Tuna, Other Species in Danger of Extinctionby Dianne Depra