 A 400-million-year-old species has returned to the Oregon Zoo. Over two dozen Pacific lamprey moved in this week. The ancient fish predates dinosaurs and even trees. Guests can see the lamprey often suctioned onto the glass, showing their sucker-like mouths and rings of sharp yellow teeth. The lamprey will stay at the zoo through the winter and are then going to be transported to tributaries of the Upper Columbia and Snake Rivers once they're ready to spawn. I'm Tammy Trujillo.