AZ Animals (US) A Guide to the Most Magnificent Creatures in Earth’s Oceans Posted: March 5, 2025 | Last updated: March 17, 2025 Five bodies of water cover 71% of the Earth’s surface: the ...

Animals living about 500 million years ago spent time on mudflats that were periodically exposed to the air. The finding suggests that some of the earliest animals were able to survive outside of ...