|
|
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Thyroid conditions may make getting pregnant impossible.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.
![Some red squirrels adopt the offspring of related individuals, a likely example of kin selection pro](https://biology-forums.com/gallery/47/medium_33_09_09_11_10_15_28_17161536.jpeg)
![Frederic Edwin Church conveyed the romantic sensibility in Twilight in the Wilderness (1860). The cl](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_223011616.jpeg)