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Author Question: The vitamin D hypothesis a. helps explain why dark skinned populations are found near the ... (Read 34 times) |
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
The longest a person has survived after a heart transplant is 24 years.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
There are more sensory neurons in the tongue than in any other part of the body.