Snow can reveal the mysterious lives of critters in the night.

These tracks were made by elk. The tracks indicate that elk were zig-zagging through the snow, digging for vegetation buried beneath.

You might perhaps be familiar with Sir David Attenborough as creator and presenter of well-known and much-awarded television and radio programs including Life on Earth, Civilization, and Blue Planet. He's an elder statesman of sorts of broadcasting, a respected spokesperson for the natural world and about climate change.

Want a cookbook that is interesting, unique, teaches much about cooking and eating outdoors, AND has incredible recipes? Look no further than Wilderness Chef: The Ultimate Guide to Cooking Outdoors, the latest book by Ray Mears. Ray is an authority on the subject of Bushcraft and Survival. He has also become a household name through his various television series, including Tracks, World of Survival, Trips Money Can't Buy with Ewan McGregor, The Real Heroes of Telemark, and many more.

I have spent a lifetime in, and around, the ocean. When I am not in or at the ocean, I am thinking about the ocean! After 30 years of diving, I have seen the damage that global warming, trash, and especially plastic have wrought. Realizing that our oceans and coral reefs are in trouble, I am not alone in wondering how we can reach people and make the change that is needed so desperately. How can we make them care? So far, we have not been able to excite people to make change.