Newly-hatched salmon use geomagnetic field to learn which way is up

Researchers who confirmed in recent years that salmon use the Earth’s geomagnetic field to guide their long-distance migrations have found that the fish also use the field for a much simpler and smaller-scale migration: When the young emerge from gravel nests to reach surface waters.

For tropical forest birds, old neighborhoods matter

Old, complex tropical forests support a wider diversity of birds than second-growth forests and have irreplaceable value for conservation, according to an Oregon State University-led exhaustive analysis of bird diversity in the mountains of southern Costa Rica. 

A view from above and below: Hatchery chinook salmon are self-sorting in tanks

Hatchery-raised chinook salmon sort themselves into surface- and bottom-oriented groups in their rearing tanks. This behavior might be due in part to the fish’s genes, according to an OSU study.

Novel research approach sheds light on how midsize predators interact

A novel research approach by Oregon State University has resulted in a key step toward better protecting the fisher, an important forest predator.