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Coronula diadema is a species of whale barnacle that lives on the skin of humpback whales and certain other species of whale. [2] This species was first described by Carl Linnaeus in the 1767 12th edition of his Systema Naturae. [1]
This barnacle has been found between January and March for several years in captive beluga whales in San Diego Bay, near a route used by migratory gray whales. The barnacles have evoked a skin reaction in the beluga whales resulting in the eviction of the barnacles, which suggests an immune response.
Rosacea. What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center.Easy flushing, a stinging sensation, and small, pus-filled pimples are other common ...
Molluscum contagiosum (MC), sometimes called water warts, is a viral infection of the skin that results in small raised pink lesions with a dimple in the center. [1] They may become itchy or sore, and occur singularly or in groups. [1] Any area of the skin may be affected, with abdomen, legs, arms, neck, genital area, and face being the most ...
Colloidal oatmeal has long been a home remedy for skin conditions like hives, since it has moisturizing and emollient benefits. Hwang suggests taking an oatmeal bath to treat hives. Mix a cup or ...
Seborrheic keratosis is the most common benign skin tumor. Incidence increases with age. There is less prevalence in people with darker skin. [21] In large-cohort studies, all patients aged 50 and older had at least one seborrheic keratosis. [22]
After hatching, whale barnacles go through six molting stages before searching for a host, being prompted to settle by a chemical cue from the host skin. The barnacle creates a crown-shaped shell, and in most instances, deeply embeds itself into the skin for stability while riding a fast-moving host.
The body protrudes from the skin of its host and is usually encountered in pairs. The cirri, normally used by barnacles for filtering food items out of the water, are vestigial, being small and unbranched, and have lost their feeding function. Nutrition is instead extracted from the host through hidden tendrils that extend downwards from the base.