The annual World Nature Photography Awards (WNPA) have just announced their 2021 winners, and the pictures are stunning. The top award and cash prize of $1,000 went to Amos Nachoum from the United States for his image of a leopard seal about to capture a defenseless Gentoo penguin. Nachoum waited patiently for hours on the remote island of Plano, off the Antarctic Peninsula, for the righ