Dusky smooth-hound time to induce tonic immobility in smooth dogfish was 32.5 seconds. The mean duration of the tonic immobility was 61.9 seconds. Sharks that had the “limp” response also exhibited tonic immobility. The “limp” response is a criterion for the onset of tonic immobility. Dusky smooth-hound The dusky smooth-hound ("Mustelus canis"), also called the smooth dogfish or the dog shark, is a species of houndshark in the family Triakidae. This shark is an olive grey or brown in color, and may have shades of yellow or grayish white. Females live to 16 years and males have a lifespan of 10 years.
Yeth hound (Dungeons & Dragons) Yeth hound (Dungeons & Dragons) In the "Dungeons & Dragons" fantasy role-playing game, the yeth hound is a sinister flying canine inhabiting evil aligned planes. Long and skinny, it is described as resembling as a dog crossed with a lynx, and is deep black in color with yellow eyes. Although lacking wings, the creature is inexplicably capable of flight. Within the game, packs of yeth hounds only hunt during the night and never venture out during the day. If abroad during the day, the sunlight causes them to quickly fade away to the ethereal plane where they cannot return. Yeth