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.
Becoming invisible usually requires magic.
For some thumb-sized squid, though, all it takes is a little genetic tweaking.
Once these squid are genetically altered, "they're really hard to spot," even for their caretakers, says Joshua Rosenthal, a senior scientist at the Marine Biological Laboratory in Woods Hole, Mass.
"We know we put it in this aquarium, but they might look for a half hour before they
