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The article focuses on ways to increase speed in water with the author comparing the swimming techniques employed by penguins and human beings and their subsequent application in torpedoes. Drag is one of the major speed barriers in swimming. The author discusses swimmers who shave their hair or employee full body suits to reduce drag. Similarly penguins self lubricate their feathers by pruning to enable them to swim quickly. This self lubrication is employed in torpedoes with use of cavitator.

The article focuses on ways to increase speed in water with the author comparing the swimming techniques employed by penguins and human beings and their subsequent application in torpedoes. Drag is one of the major speed barriers in swimming. The author discusses swimmers who shave their hair or employee full body suits to reduce drag. Similarly penguins self lubricate their feathers to enable them to swim quickly. This self lubrication is employed in torpedoes with use of cavitator.

The article focuses on the significant of preening to control insect pests. It observes that bed bugs fo preen themselves and the behavior is crucial to maintain chemical reception with the world around them. It notes that the ingestion serves to deliver the pesticide within the cockroach's body as a stomach poison resulting in the death of the cockroach.

The article explores the mechanics of pest management in relation to cockroach grooming that comprises of cleaning legs and antennae. It states that cockroaches groom themselves to survive. Sensors are primarily on the legs and antennae, so these parts are kept clean at all times. There are different grooming schedules between strains of German cockroaches. The normal grooming schedule for resistant-strain cockroaches is to groom legs after every four minutes and antennae every minute. The article informs that when adult cockroaches from a resistant strain walk on an insecticide-treated surface, grooming changes from the normal pattern.