"Charging bear" by Charles Glatzer, via 500px. "AK brown bear charging into pool of salmon. Fortunately, this bear was inept at fishing, giving me multiple opportunities to create this image. After a few misses I got the bears MO and proceeded to position myself accordingly for this image, low and vertical. This image was the cover of Popular Photography March, 2010."
Even though River Otters are not listed as Endangered species, their range has been greatly reduced over the years by habitat destruction and they are vulnerable to pollution and toxins in the environment. Basically these animals are endangered too!