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Is This the Oldest Animal Ever Found? Scientists have long been investigating the origins of life, and researchers can use genetic, molecular, and paleontological tools to do so. While there is some molecular evidence that animals first arose during the Neoproterozoic era that stretches back 541 million to 1 billion years ago, and more specifically, during the Cryogenian period, there isn t much physical evidence to prove that hypothesis. However, scientists have begun to identify what may be ancient fossilized microbes that could represent the oldest animals. Earlier this year, for example, researchers found what they described as fossils of ancient sponge-like animals that could be as much as 635 million years old. At the time, they were thought to be one of the oldest fossils of an animal ever discovered.

Elizabethc turnerLaurentian universityNorthwest canadaProfessor elizabethலாரன்டியன் பல்கலைக்கழகம்வடமேற்கு கனடாப்ரொஃபெஸர் எலிசபெத்