For the first time, scientists have identified cells in mice that are capable of regenerating new hair follicles when transplanted into the skin. The finding is likely to spur research into new hair loss treatments for humans.
The mystery of migrating monarch butterflies has captured the attention. of people throughout the world. East of the continental divide in North. America, monarchs generally migrate to central Mexico from as far away as. Ontario, Canada. Monarchs west of the divide fly to the coast of California. to spend the winter. They cluster together on tree limbs during the winter. months in California by the thousands, and in Central Mexico by the mil-. lions.
Among the two species of Monarch butterflies, the one in North America differs from the one you will find in South America, but the Caribbean is home to both species. You can also see them in Australia, New Zealand, and several Islands lying between Australia and Tahiti, in parts of Europe and in Hawaii.