Ecology

Noun typical weather in a region
Using a submersible designed to withstand immense pressures, scientists are probing the climate of the Marianas Trench, the deepest part of the ocean.
Noun preservation and careful management of resources
The organizers behind Earth Hour urge people to turn off lights in a symbolic show of support for action against climate change and for energy conservation.
Noun state or quality of being different or varied
Scientists were flabbergasted at the discovery of cryptomycota, newly discovered life forms related to fungi but with enough diversity to be considered their own category.
Noun science of the relationship between animals and their environment
ecology
Cities are often viewed as environmental wastelands, where only the hardiest of species can eke out an existence. But as scientists in urban ecology have found, more and more animals are establishing footholds.
Adjective related in such a way that each needs or depends on the other
The cycle of wildlife is so interdependent that an alteration in one place is bound to have consequences elsewhere. We can't predict the consequences of allowing genetically modified animals loose on the world.
Noun the relation between two different kinds of living things that depend on each other
Commenting on his unique installation, Mr. Taylor said: "It's a symbiosis of humans and nature living in this cycle in harmony with each other."