The Ancient Origins of Complexity: Uncovering the Dawn of Animal Life Fossils discovered in Canada's Northwest Territories have rewritten our understanding of the dawn of animal life on Earth.
The 567 million year old creatures found at this remote location push key evolutionary milestones back by up to 10 million years, suggesting that complex animal life may have first flourished in the deep ocean.
For decades, scientists have puzzled over the transition from microbial life to multicellular organisms.