HABITAT: Killer whales may be seen in all types of marine ecosystems but prefer cooler temperate and polar regions. Although sometimes spotted in deep water, they are usually partial to coastal areas.

Krill is considered to be the largest animal biomass in the wild on Earth and is an important prey species for baleen whales ...

From coral bleaching to sea level rise, entire marine ecosystems are rapidly changing. Global warming is causing alterations in ocean chemistry and many oceanic processes, and it is threatening ...