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.
There are 21 native milkweed species in Florida and eight native species in south Florida (see sidebar). While some of these species may not be quite as showy as A. curassavica, they work perfectly well as monarch attractants.hile other butterflies, including others in the Danainae family (the milkweed butterflies), migrate, the monarch is the only butterfly species in the world to undertake a long-distance roundtrip migration.