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SciShow
5 of the Coolest Partnerships Between Animals and Bacteria
This Valentine’s Day, send a little love to your bacterial buddies! Our microbes keep us healthy, but some bacteria give their animal companions superpowers, like immunity to poison, or even invisibility!
SciShow
Sparkling Clouds and Other Wild Ways Cephalopods Use Ink
Octopuses and other cephalopods can squirt ink when threatened, but the forms the ink takes can go way beyond your typical smokescreen.
Sea Studios Foundation
Shape of Life: Molluscs: Blue Ringed Octopus Warning Coloration
Did you know that a blue-ringed octopus has bright blue ring patterning on its body that it flashes to warn off predators? View this video showing how the octopus warns about its very poisonous venom. [0:59]