Lobsters’ blood is colorless, but turns blue when exposed to oxygen. Lobsters, like snails and spiders, have blue blood due to the presence of haemocyanin which contains copper (in contrast, vertebrates and many other animals have red blood from iron-rich haemoglobin).
Bears have 42 teeth including four long canines and twelve incisors. The exception is that of the sloth bear, which has only 40 teeth. Sloth bears have two fewer teeth than bears of other species to create a gap in the front of their mouths through which they may suck
Kissing is taboo in some parts of Africa, particularly the Sudan, where it is believed that the mouth is the portal to the soul. According to an article in the New York Times on Valentine’s Day 2006, the Lapps of northern Finland regarded kissing as detestable, though both sexes would
The smallest bone in the human body is in your ear and is called the stirrup bone, the stapes, one of the 3 bones that make up your middle ear; measuring 2-3 millimeters (0.10 to 0.13 in) and weighs only 1.98 to 4.3 mg. It shaped like a ‘U’ and
A cervical rib is a supernumerary (or extra) rib which arises from the seventh cervical vertebra. It is a congenital abnormality located above the normal first rib. A cervical rib is present in only about 1 in 500 (0.2%) of people. In even rarer cases, an individual may have two
Contrary to popular belief, sleep is not a time where the body shuts down to rest. Some types of brain activity increase, and some types of hormone production increase as well. There also is no evidence that any major organs shut down, though the metabolic rate might slow down a