Diatoms, microscopic algae that encase themselves in ornate, exquisitely patterned glass shells, are found in prolific numbers in every ocean on earth. They have fascinated scientists for centuries—in fact, ever since the microscope was first invented and men... 

The red lionfish (Pterois volitans) is a venomous coral reef fish from the Indian and western Pacific Oceans. The red lionfish is also found off the east coast of the United States, and was likely first introduced off the Florida coast in the early to mid-1990s.... 

Coral reefs are made up of polyps and algas. Packed into every available spot in polyp cells, algas give corals their brilliant colors. And they often exceed the polyps in weight, sometimes by as much as 3 to 1, making corals more plant than animal! The algas’...