This month, a grim study in the journal Science reported what we've feared for decades: That the ocean may "be sitting on a precipice of a major extinction event," in the words of one author. There's a colossal amount of work to be done if we want to turn it around—including reclaiming habitats, which is the goal of…
Red light can't penetrate far past the ocean's surface, so researchers thought that most fish don't perceive red light. But some reef fish have taken advantage of the absence of red light, using it to communicate without attracting the attention of their predators.
The Great Barrier Reef is 1,800 miles long and home to a quarter of the world's ocean species. So it's no wonder that marine biologists, fearing its pollution-driven demise, started freezing corals so they can preserve them for later.
Sure, coral reefs are pretty, but they also have creepy almost alien-like superpowers: An entire reef can be regrown from a tiny chunk of coral.