Will Florida manatees be listed as an endangered species again?

In the wake of thousands of Florida manatee deaths in recent years, federal wildlife officials announced they will launch a new scientific review to determine whether the animal should be reclassified as an endangered species.

Rooting out how plants control nitrogen use

Insights into gene and protein control systems that regulate the use of nitrogen by plant roots could help develop crops that require less nitrogenous fertilizers to produce acceptable yields. Plant biochemist Soichi Kojima ...

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