Squid Types
Invisibility
Secret of squid invisibility used to turn human cells transparent
Of all the superpowers in the animal kingdom, the squid's ability to turn invisible is one of the coolest. And now scientists at the University of California, Irvine have managed to recreate that in human cells for the first time, granting them tuneable transparency.
https://newatlas.com/science/engineered-human-cells-transparent-squid-proteins/

How Scientists Managed to Film the Ocean's Largest and Shyest Deep-Sea Squids
Although you have probably heard of deep-sea squids, it's unlikely you have seen these large and very shy creatures. This is because these animals have very large eyes (about the size of a basketball) that cause them to spot any upcoming submersible that is trying to film them in action.
https://interestingengineering.com/how-scientists-managed-to-film-the-oceans-largest-and-shyest-deep-sea-squids?utm_source=tldrnewsletter

How scientists engineered a see-through squid with its brain in plain view
A see-through squid is giving scientists an unprecedented view of the brain and other organs in a living animal.
https://www.npr.org/sections/health-shots/2023/08/28/1196073961/how-scientists-engineered-a-see-through-squid-with-its-brain-in-plain-view


Seonglae Cho