|
|
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Thyroid conditions may make getting pregnant impossible.
In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
![Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_47_42_20831726.jpeg)
![(a) Homologous traits are similar due to shared ancestry. (b) Analogous traits (bats’, birds’, and f](https://biology-forums.com/gallery/47/medium_234464_20_01_15_11_04_39_202642177.jpeg)