Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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There are more bacteria in your mouth than there are people in the world.
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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.
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There are 60,000 miles of blood vessels in every adult human.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
diagram of question asked
Serving unfamiliar foods repeatedly and asking the child to try a bite can lead to gradual ...
How to solve a trigonometric problem involving two right triangles (Question 1)