Niels Bohr - Biographical. Niels Henrik David Bohr was born in Copenhagen on October 7, 1885, as the son of Christian Bohr, Professor of Physiology at Copenhagen University, and his wife Ellen, nÃ©e Adler.
Opuntia is a large genus of plants native to North America and South America. All have succulent stems, some of them becoming woody with age. Stems may be cylindrical or flattened pads. Tiny, succulent leaves may be present on the newest growth (see photo below.) Most species are spiny.
Opuntia is a genus in the cactus family, Cactaceae. The most common culinary species is the Indian fig opuntia (O. ficus-indica). Most culinary uses of the term prickly pear refer to this species. Prickly pears are also known as tuna (fruit), sabra, nopal (paddle, plural nopales) from the Nahuatl word nÅpalli for the pads, or nostle, from the Nahuatl word nÅchtli for the fruit; or paddle cactus.