41K views · 75 reactions | A reminder to *not* mess with wildlife: A Yellowstone National Park visitor’s intervention led to a bison calf being rejected by its herd and later euthanized | NowThis Earth | Facebook

36K views · 2.7K reactions | How animals walk in winter can tell you a lot about their ability to adapt to harsh conditions. Some animals, like bison, elk and deer will follow each other's paths through deep snow to conserve energy. Other animals, like cougars and foxes, will "direct register." This style of walking ensures that their back paws land directly in the track their front paw made and makes for easier—and quieter—walking! | Yellowstone Forever | Facebook