The early fossil record is full of strange creatures that are unlike anything living today. And few of those evolutionary mysteries are as puzzling as Teflossus, an ancient marine animal so strange that paleontologists have dubbed it a strange goldfish. The point-like animal has challenged classification status for nearly 50 years. Scientists weren’t sure if the animal, which had a large tail fin and intestines often filled with the remains of early fish species, was more closely related to a worm, a jawless fish, or something else entirely. However, the…
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