520m-year-old nervous system among oldest and most detailed ever found
It might resemble a menacing shrimp, but scientists have discovered an immaculately preserved 520-million-year-old creature was also a bundle of nerves. Unearthed in southern China, the fossils boast among the oldest and most extensive nervous systems ever preserved, researchers claim. Unlike bones and teeth which are commonly found in fossilised form, soft tissue - and in particular nerve tissue - is another matter. “Nerve tissue is extremely rare, and...