38K views · 433 reactions | When prey hits the hydra’s tentacle a neurotoxin is released that immediately paralyzes the victim. The hydra will then slowly contract its arms and transport the prey towards its mouth to be eaten alive! #MicroscopicMonday  | Science Channel | Facebook

2.8M views · 16 reactions | This lamp doesn't have a battery — it's actually powered by saltwater. | Insider Science | Facebook

117K views · 1.5K reactions | If your party doesn't look like this don't even bother inviting us Step-by-step instructions for performing this experiment in a lab: https://mel.sc/sVB/ This experiment is not included in the MEL Chemistry subscription and should be performed only by professionals–we just love showing you the beauty of chemistry For cool and safe experiments to do at home, sign up for MEL Science here: https://mel.sc/sVC/ | MEL Science | Facebook