The Hydra's Mouth Is a Hungry Wound | HowStuffWorks NOW

This tiny freshwater predator rips open its own body to form a wound mouth, then seals it closed when dinnertime is over. Now scientists understand the exact mechanisms involved…

music: ‘Sidewalk Chalk’ by Broke for Free

VIDEO CLIPS:
Hydra vulgaris
https://www.youtube.com/watch?v=9ViJxPHwtNk
Hercules 2014 Fight scene
https://www.youtube.com/watch?v=uTuBZTKNhcY
Gremlins (2/6) Movie CLIP - Multiplying Mogwai (1984) HD
https://www.youtube.com/watch?v=o2vw_iYBAyY
The Thing - Defibrillator Scene
https://www.youtube.com/watch?v=16N1naXGa58
Macro Video of Human Eye & Iris
https://www.youtube.com/watch?v=-01-XBHXFq8

SOURCES:
http://www.eurekalert.org/emb_releases/2016-03/cp-itm030216.php

The Hydra's Mouth is a Hungry Wound | HowStuffWorks NOW
https://youtu.be/uaSJdcXlp-o

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