“Beyond urine, whale carcasses also serve as nutrient deposits. When a whale dies, its massive body sinks to the ocean floor, ...

Organic amendments are often derived from animal wastes or plant residues ... Unlike other plant nutrients, most laboratories do not routinely test soil for N because the N cycle is very dynamic. The ...

Models of the global carbon cycle ... nutrients—including carbon—are recycled. Overall, the authors found, on average, a twofold increase in ecosystem carbon sequestration when animals were ...

Carrion flies locate dead animals through a keen sense of smell ... digest it, and then cycle the nutrients back into the environment through their feces, after respiration and assimilation.

Photo Credit: NASA Oxygen-starved ocean “dead zones,” where fish and animals cannot survive ... nitrogen into the ocean from human activity can impact the ocean’s nutrient cycle. “The key questions ...