Snails and Slugs learn more about names for this taxon. Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once.
Bleeding from the ear can also be due to more serious conditions, such as a blow to the head or cancer of the ear canal. You should contact your doctor any time you experience bleeding from the ear. If you experience bloody discharge from the ear after a fall or a blow to the head, seek immediate medical care.
Normally, we assume that earache occurs because of ear infection, which is in fact true for most cases. Especially in children or infants, infection or cold is the most likely cause of ear pain. Ear pain in children can occur when the ear canal is irritated from swabs or other foreign material inside the ear. Sometimes, soap or shampoo that stays in the ear can cause the earache.