The open ocean is a good place for parasites, fish don't have arms to remove them and swim far from anything fixed like a coral reef that can be used as a comb.
A team of researchers has found that fish like to rub against sharks to scratch themselves and remove irritants including parasites. They prefer sharks to other fish for this purpose. Shark skin is rough, made up of tiny tooth like structures, and was used as sand paper in prehistoric times.
Fire officials in Washington State are seeking information on people and a vehicle of interest as they investigate a wildfire that grew to 2,000 acres from 150 acres within hours on Sunday, forcing thousands of people to evacuate.
The authorities are trying to identify two men and two women who are believed to be connected with a white or light-colored Subaru seen on a ridge near the fire on Oct. 9, the Clark County fire marshal said in a statement on Monday afternoon. The statement included a video and photo and cited witness statements, but it did not elaborate on the connection.
The fire, called the Nakia Creek fire, is burning on extremely steep ground in the Yacolt Burn State Forest near Camas, Wash., about 20 miles northeast of Portland, Ore. Officials said it was spread over 1,565 acres as of Monday afternoon and was 5 percent contained.
Frost graced the cars in Winthrop this morning and lingered into the afternoon in shaded pockets at Washington Pass. We're on the knife edge between seasons.
One year ago today. It was cold, and the air was clean.
WSSOT posted some photos of highway 2
WashingtonPass OP t1_it5hsvj wrote
Reply to Sharks are the preferred scraping surface for large pelagic fishes: Possible implications for parasite removal and fitness in a changing ocean by WashingtonPass
The open ocean is a good place for parasites, fish don't have arms to remove them and swim far from anything fixed like a coral reef that can be used as a comb.
A team of researchers has found that fish like to rub against sharks to scratch themselves and remove irritants including parasites. They prefer sharks to other fish for this purpose. Shark skin is rough, made up of tiny tooth like structures, and was used as sand paper in prehistoric times.