Splitting Chinook salmon into two groups based on their DNA could aid conservation efforts. But some researchers argue that this would be a misuse of the data.
From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.
Conservationists are reintroducing large animals to areas they once roamed, providing ecologists with the chance to assess whether such “rewilding” efforts can restore lost ecosystems.
The discovery of ancient clades of brittle stars at the bottom of the Pacific Ocean adds to concerns that commercial exploitation of the area could destroy numerous taxa before they’ve even been identified.