The technique sheds light (literally) on how transplanted tissue interacts with the nervous system — only
the tadpoles whose transplanted eyes connected to their spinal cord, rather than their gut, seemed to be able to see.
Only
tadpoles whose transplanted eyes formed connections with their spinal cord managed to learn; eyes that instead connected to the gut were apparently useless.
Not exact matches
The study's lead author, Michael Levin, and his colleague Douglas Blackiston took
tadpoles of the African clawed frog (Xenopus laevis)
whose eyes had been surgically removed and transplanted «donor» eyeballs — one per
tadpole — along various points on the back.
Many don budding crystals painted bright blue or a slimy green, another «cup»
whose interior is painted with squiggly, eye - ball
tadpoles, is filled with black painted fingers covered in tiny bugs.