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Everyone has one nostril that is larger than the other.
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
There are more nerve cells in one human brain than there are stars in the Milky Way.
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
![The small-scale distribution of different tree species in a Douglas-fir forest is determined by both](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_40_13_1824342.jpeg)
![The frontal lobe (green) bounded by the Sylvian fissure (yellow line) and central sulcus (red line),](https://biology-forums.com/gallery/47/medium_273688_23_02_15_7_07_17_208391007.jpeg)