1 Pain: Persistent mouth pain is another common oral cancer sign. 2  A lump or thickening in the cheek. 3  A white or red patch on the gums, tongue, tonsil, or lining of the mouth. 4  A sore throat or feeling that something is caught in the throat that does not go away.
Blue whales are the largest predator to ever inhabit this planet, though it is thought to feed almost exclusively on tiny, shrimp-like creatures called euphausiids or krill. Feeding is usually at depths less than 100 m; harpooned animals have dived as deep as 500 m.lue whales, Balaenoptera musculus (Linnaeus, 1758), like all rorquals (Family Balaenopteridae, the family that includes the blue whale, Bryde's whale, fin whale, humpback whale, minke whale, and sei whale), are long, slender whales that are much more streamlined than other large whales.
Blue whales (scientific name: Balaenoptera musculus) can be found in all oceans of the world. They are most commonly seen along continental shelves and ice fronts, but sightings have been reported in the deep ocean and in shallow inshore regions.ength and Weight: The average length of a blue whale is 75 - 80 feet (23 - 24 meters) and these long marine mammals can weigh up to 200,000 pounds (90,000 kg). Whales in the southern hemisphere are generally larger than those in the northern hemisphere.