Science

How One Millionaire's Promise Led to a National Park (03:52)

A Secret Refuge for Elk Thought to Be Extinct (02:11)

How Was the Grand Canyon Formed? (02:20)

This Bug Wears Its Victims' Carcasses as Camouflage (02:01)

Breathtaking Views of the Largest Glacier in North America (02:01)

Why You Should Know This Prolific Princess of Paleontology (03:48)

Tree Video PAL Cutdown (00:51)

Here's What Bat Echolocation Sounds Like, Slowed Down (02:04)

How the Fastest Animal on Earth Attacks Its Prey (03:43)

Stunning Footage of a Kubong Gliding Through the Trees (01:47)

How a Giant Lazy River of Grass Became the Everglades (01:09)

This Is the Closest Thing to a Dragon You'll Ever See (01:44)

Semysmauchenius sp1, ventral view (00:07)

Butterflies Zigzag Wildly for a Reason (01:27)

Stunning Timelapse of a Dragonfly Growing Wings (02:02)

Ask Smithsonian: Why Does My Nose Run When Its Cold Outside? (01:01)

2016 FLAP Canada Bird Layout (00:22)

How the Hydra Vulgaris Eats (00:17)

Slo-Mo Footage of a Bumble Bee Dislodging Pollen (01:39)

Why You Should Take the Honey Bee Shortage Seriously (02:34)

Watch This Intense Hyena Hazing Ritual (02:10)

Ask Smithsonian: Why Do We Kiss? (01:11)

Why Polar Bears Like to Wrestle in the Winter (01:37)

Ask Smithsonian: Can Elephants Jump? (00:50)

Would You Get This Close to a Goliah Tigerfish? (04:01)

Video: Ask Smithsonian: What Is Wind? (01:09)

Video: Ask Smithsonian: Why Do We Sneeze? (01:21)

This Color-Changing Mutant Has Three Hearts (03:10)

Are We on the Cusp of a Global Volcanic Winter? (03:16)

Ask Smithsonian: How Do Colors Affect Our Moods? (01:11)

What Is the Anthropocene? (03:14)

Astounding Facts About Crocodile Eyes (03:36)