* The Ocean: The ocean covers over 70% of the Earth's surface and is teeming with life. From microscopic plankton to giant whales, the ocean is a diverse and rich ecosystem.
* Freshwater: Rivers, lakes, and ponds also support a wide variety of organisms, including fish, amphibians, insects, and plants.
* Life's Origins: Scientists believe that life on Earth originated in water billions of years ago.
So, while some organisms thrive on land, water is undeniably the dominant habitat on Earth.