Caged molecules do their thing. 1  Twelve or more table tennis balls. 2  One different-colored table tennis ball. 3  Wire basket. 4  Cardboard cut to fit over the basket opening. 5  Tape. 6  A hair dryer (set to the coolest setting), fan, or other blower.
Photo credit: Danika Bannasch, UC Davis. Hereditary equine regional dermal asthenia (HERDA) is a genetic skin disease found in the Quarter Horse. The disease is characterized by hyperextensible, elastic skin, severe dermatologic lesions, and often scarring along the back and withers of affected horses.
Herd is usually applied to large animals such as cattle, originally meaning those under the charge of someone; but by extension, to other animals feeding or driven together: a buffalo herd; a herd of elephants.