1 Routine screening of average-risk women should begin at age 50, instead of age 40. 2  Routine screening should end at age 74. 3  Women should get screening mammograms every two years instead of every year. 4  Breast self-exams have little value, based on findings from several large studies.
Locusts, grasshoppers (mostly Acrididae and Pyrgomorphidae), crickets (Gryllidae) and katydids (Tettigoniidae) are insects of the order Orthoptera. Many are edible and more than 80 species of locusts, grasshoppers and crickets are consumed worldwide for human food in Africa, South America and Asia. They may be part of the normal diet, or delicacies sold by street vendors.
Key facts on Locusts. Locusts are the oldest migratory pest in the world. They differ from ordinary grasshoppers in their ability to change behaviour (gregarize) and form swarms that can migrate over large distances. The most devastating of all locust species is the Desert Locust (Schistocerca gregaria). During plagues, it can easily affect 20 percent of the Earth's land, more than 65 of the world's poorest countries, and potentially damage the livelihood of one tenth of the world's population.