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
Because mountain habitats can change quickly as elevations increase, they are often home to a greater diversity of plants and animals than nearby lowlands. On some mountains, especially at medium elevations in warmer latitudes, many species are endemic, meaning that they are found nowhere else in the world.ecuring mountain ecosystems within parks and other protected areas can help to preserve their valuable plants and animals for future generations. Protected areas have proved key to the preservation of some species, such as the mountain gorillas of the Virunga Mountains in the Democratic Republic of Congo.