The ocean covers about 71% of the Earth's surface and contains 97% of the planet's water.

Some deep‑sea fish create their own light.

Dogs can smell certain diseases such as cancer.

In 1796, Edward Jenner developed the world's first vaccine by using cowpox material to induce immunity against smallpox, a breakthrough that led to the disease's global eradication.

The Ring of Fire surrounds much of the Pacific Ocean.

A blue whale consumes vast amounts of krill daily.

A sea otter uses its chest as a surface for cracking shells.

There are underwater waterfalls caused by differences in water density.

The immortal jellyfish is the only known animal capable of reverting to its juvenile form repeatedly.