Species 'hotspots' created by immigrant influx or evolutionary speed depending on climate

Some corners of the world teem with an extraordinary variety of life. Charles Darwin noted that: "The same spot will support more life if occupied by very diverse forms."These specimens, from Cambridge University's Museum of Zoology, were collected and labelled on the second voyageof the HMS Beagle (1831-1836) that carried Darwin to the Galapagos Islands. Researchers say these famouslydiverse finches are an iconic example of...[[ This is a content summary only. Visit my website for full links, o