The Hagfish Is the Slimy Sea Creature of Your Nightmares

"At the bottom of the ocean dwells a bizzare-looking creature. A fish so ancient, it has remained unchanged for 300 million years. This is the hagfish."  
Ooooh, so excited. It's mini-documentary time big kids...

The hagfish is a slime-emitting ocean-dweller that's remained unchanged for 300 million years--and it shows. It has a skull (but no spine), velvet smooth skin, and a terrifying pit of a mouth that’s lined with rows of razor-sharp teeth.

Smithsonian Channel

See the 1,000-Year-Old Windmills Still in Use Today | Short Film Showcase

Fascinating...

These amazing windmills are among the oldest in the world. Located in the Iranian town of Nashtifan, initially named Nish Toofan, or "storm's sting," the windmills have withstood winds of up to 74 miles an hour. With the design thought to have been created in eastern Persia between 500-900 A.D., they have been in use for several centuries.

National Geographic

This Terrifying Worm Snatches Fish from the Ocean Floor

It's like watching a horror movie-slash-documentary. Fascinating...

Sand strikers, also known as bobbit worms, are primitive-looking creatures that lack eyes, or even a brain. Despite this, they are savage predators who shoot out grapple-like hooks to reel in passing fish.

Smithsonian Channel