WASHINGTON (AP) — A Canadian geologist may have found the earliest fossil record of animal life on Earth, according to a report published Wednesday in the journal Nature. Around a billion years ago, a region of northwest Canada now defined by steep mountains was a prehistoric marine environment where the remains of ancient sponges may be preserved in mineral sediment, the paper says. Geologist Elizabeth Turner discovered the rocks in a remote region of the Northwest Territories accessible only by helicopter, where she has been excavating since the 1980s. Thin sections of rock contain three-dimensional structures that resemble modern sponge skeletons. “I believe these are ancient sponges — o
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