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.
Smart nature straight to your inbox every week. Migration season is upon us, but it isnât just birds that are migrating. We know that monarch butterflies make a complex annual migration, but the record for the longest insect migration (twice the distance of monarchs) is held by a dragonfly â the wandering glider. Unfortunately, beyond this remarkable example, we know very little about dragonfly migration.