The evolution of multicellularity required the suppression of cancer. If every cell has some chance of becoming cancerous, large, long-lived organisms should have an increased risk of developing cancer compared to small, short-lived organisms. Animals with 1, times more cells than humans do not exhibit an increased cancer risk, suggesting that natural mechanisms can suppress cancer 1, times more effectively than is done in human cells. Because cancer has proven difficult to cure, attention has turned to cancer prevention. In this review, like pharmaceutical companies mining natural products, we seek to understand how evolution has suppressed cancer to ultimately develop improved cancer prevention in humans. Cancer is a consequence of multicellularity and a striking example of multi-level selection.
The full story of the sex-crazed tribe cut off from the world for 30,000 years
Scabies - Wikipedia
Naked eye , also called bare eye or unaided eye , is the practice of engaging in visual perception unaided by a magnifying or light-collecting optical instrument , such as a telescope or microscope. Vision corrected to normal acuity using corrective lenses is still considered "naked". In astronomy , the naked eye may be used to observe celestial events and objects visible without equipment, such as conjunctions , passing comets , meteor showers , and the brightest asteroids , including 4 Vesta. Sky lore and various tests demonstrate an impressive variety of phenomena visible to the unaided eye. The visibility of astronomical objects is strongly affected by light pollution. Even a few hundred kilometers away from a metropolitan area where the sky can appear to be very dark, it is still the residual light pollution that sets the limit on the visibility of faint objects.
Sherburn, Minnesota CNN In a jaw-dropping moment caught on video, an year-old high school senior rushes to escape from the hospital that saved her life and then, she says, held her captive. Read the second part of "Escape from the Mayo Clinic. More Videos Watch teen escape from Mayo Clinic. Why is health care in the US so expensive?
Scabies , also known as the seven-year itch , is a contagious skin infestation by the mite Sarcoptes scabiei. Scabies is caused by infection with the female mite Sarcoptes scabiei var. A number of medications are available to treat those infected, including permethrin , crotamiton , and lindane creams and ivermectin pills. Scabies is one of the three most common skin disorders in children, along with ringworm and bacterial skin infections.