Instead of a D and R, WhatsApp uses checkmarks to represent message status. Based on the precedent set by BBM and WhatsApp, I think a LOT of WhatsApp users out there mistakenly take this to mean that one checkmark means the message has reached the phone while the second checkmark means the message has been read.
Food is scarce and the climate is very cold. Many animals have adapted to survive the bitter cold. Animal life on mountains vary from continent to continent. The animals in the mountains of North America (Canada, USA) include the big horn sheep, mountain goats, brown bear, black bear, grizzly bear, mountain lions and antelope. Further information
Large Grassland Animals. Grassland ecosystems have a variety of large and diverse animals. Giraffes, African elephants, bison, black rhinoceros, black-footed ferrets, brown hyenas, lions and ostriches are all examples of the types of larger animals that inhabit grasslands.