Once found along the entire Pacific Northwest coast, the Oregon silverspot butterfly now survives in only a few isolated ...

The Oregon Zoo is home to many large animals – take, for example, the biggest baby in the city, elephant calf Tula-Tu. But the zoo also works with smaller animals, sometimes much, much smaller. Last ...

Oregon Zoo has welcomed 25 rare Pacific lamprey – a 400-million-year-old species native to the Pacific Northwest. The effort is part of a tribal-led initiative to restore lamprey populations above ...

The Oregon Zoo says it welcomed 25 Pacific lamprey last week. The eerie-looking eels are part of a larger effort to restore ...