"You might know that gray wolves live in packs, but there’s so much more to learn about these incredible predators! Find out what makes wolves howl, why wolves sniffing each other’s butts is their way of shaking hands, and how some wolves in Yellowstone National Park used thermal activity to heat their den! You’ll also witness the incredible relationship gray wolves have with ravens (they play tug with wolf cubs), learn about wolf rewilding...

"In 1995, the gray wolf was reintroduced to Yellowstone National Park after a seventy-year absence. All these years later, we can clearly see the cascading effects this has had on the park's ecosystem. This is a spectacular example of a trophic cascade, the term used when an important member of an ecosystem goes missing and many other living things are indirectly affected, causing a chain reaction of events. In the case of the reintroduced wolves...