Jerking eye movements and Unequal pupils (size) WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms jerking eye movements and unequal pupils (size) including Eye injury, Normal variation, and Stroke. There are 9 conditions associated with jerking eye movements and unequal pupils (size).
The killer whale (scientifically known as orcinus orca) is a large oceanic marine mammal that is part of the toothed whale (odontoceti) suborder. The toothed whale suborder is comprised exclusively of whales, dolphins and porpoises that are born with teeth instead of baleen plates.While the killer whale carries the name âwhaleâ as part of its description this marine mammal is actually considered a dolphin.In addition to being known as the killer whale these marine mammals may also be referred to as the Blackfish or the Orca.he toothed whale suborder is comprised exclusively of whales, dolphins and porpoises that are born with teeth instead of baleen plates. While the killer whale carries the name âwhaleâ as part of its description this marine mammal is actually considered a dolphin.
Female killer whales reach sexual maturity when they grow to about 15-18 feet (4.6 m-5.4 m) long, depending on geographic region. The gestation period for killer whales varies from 15-18 months. Birth may take place in any month--there is no distinct calving season. Calves are nursed for at least 1 year, and may be weaned between 1-2 years old. The birth rate for killer whales is not well understood, but, in some populations, is estimated as every 5 years for an average period of 25 years. Killer whales are highly social animals that occur primarily in relatively stable social groups that often range in size from 2 to 15 animals.