Low Oxygen Levels May Have Delayed Emergence of Animals

Riverside, Ca –

"Records of the earliest animals on Earth extend to roughly 700 to 800 million years ago, despite much older traces of microbial life in rocks deposited 3.7 billion years ago. Multiple factors might have contributed to this delay — but not with equal effect and in ways that are often not well understood."

Read More

Let us help you with your search