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.
Monarch butterflies are found in North America, South America, the Caribbean, Australia, New Zealand, islands in the Pacific Ocean, Mauritius, the Canary Islands of the Atlantic, and Western Europe. Monarch butterflies prefer warmer climates; they cannot tolerate frost. They like open country.