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Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
Did you know?
More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
Did you know?
Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
![The yellow-winged darter, Sympetrum flaveolum, is a dragonfly found in Europe and mid and Northern C](https://biology-forums.com/gallery/47/medium_12359_26_04_12_4_58_19.jpeg)
![The Red-bearded Bee-eater Nyctyornis amictus is a large species of bee-eater found in the Indo-Malay](https://biology-forums.com/gallery/47/medium_12359_29_04_12_6_13_00.jpeg)