When first introduced to the United States in 1825, poinsettias or Euphorbia pulcherrima were named “Painted Leaf” and “Mexican Fire Plant.” In 1822, Joel Roberts Poinsett, who was ambassador to ...
Organisms that have evolved down “one-way” paths may lack the flexibility to respond to new selection pressures in particular ways and have to figure out new strategies to change. In lineages such as ...