Some animals do not have red blood like humans. From spiders to octopuses, their copper-rich blue blood helps them survive extreme environments. Here’s how it works and why it matters.

The deep sea, covering approximately 65% of Earth's surface, has long been considered a biological desert. In this extreme environment—particularly in the hadal zone at depths greater than 6,000 ...

Humanity has only explored 0.001% of the deep sea, according to a May 2025 study.Getty Images Reporter The Trump Administration signed an executive order late last month aiming to fast-track approval ...

A new study indicates that deep-sea mining could threaten at least 30 species of sharks, rays and chimaeras, many of which are already at risk of extinction. The authors found that seabed sediment ...

The deep sea, the planet’s most expansive and least understood ecosystem, remains largely unexplored. Yet while the deep sea may seem a dark and distant space, events underwater directly impact our ...