CRISPR gene-editing has been used in clinical trials to treat sickle cell disease and certain forms of blindness.

A group of jellyfish is called a smack.

Fact #3656 · Ocean

Dogs can detect certain diseases through scent.

Fact #1343 · Ocean

Roughly half of all humans who have ever lived died from infectious diseases.

Fact #2766 · Ocean

Coral reefs are built by tiny animals called coral polyps.

Fact #654 · Ocean

Billy Mays died from heart disease shortly after a flight.

Fact #3198 · Ocean

The Caspian Sea is the world's largest inland body of water and is classified as a lake despite its salt water.

Fact #3759 · Ocean

Penguins use their flippers to propel themselves underwater.

Fact #1238 · Ocean

The deepest ocean trench is the Mariana Trench.

Fact #907 · Ocean