A deep-sea chimaera—a cartilaginous fish related to sharks—seen by the Little Hercules in the Sulawesi Sea. Its snout is covered with tiny pores capable of detecting perturbations in electrical fields generated by living organisms.

A deep-sea chimaera—a cartilaginous fish related to sharks—seen by the Little Hercules in the Sulawesi Sea. Its snout is covered with tiny pores capable of detecting perturbations in electrical fields generated by living organisms. Image courtesy of NOAA Okeanos Explorer Program.

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