Growing Genetically Engineered Stingrays for Footwear Raises Ethical Concerns


A company called Rayfish Footwear claims to bring consumers shoes made out of genetically engineered stingrays. The resulting shoes look very distinctive, but there has been some backlash against the ethics behind such products as well as the claims the company has made.

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Pikaia Gracilens Revealed as Possible Genetic Ancestors to All Vertebrates


The Middle Cambrian Pikaia gracilens, from 505 million years ago, was a fish-like worm, which has the possible dubious distinction of being one of humanity’s earliest genetic ancestors. These fish-like worms had the beginning of spines, including a notochord and a nerve chord, which wasn’t obvious to distinguish initially. The researchers published their findings in the journal Biological Letters.

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