How do you know that finches' beak depth is heritable? You can see from Figure 2 that there is a correlation between the parents' and offsprings' beak size. How did the finch population change ...

Scientists long after Darwin spent years trying to understand the process that had created so many types of finches that differed mainly in the size and shape of their beaks. Most recently ...

The finches in the above video were collected from the Galápagos Islands in 1835 by Charles Darwin and his colleagues during the second voyage of HMS Beagle (1831-1836). The different finch species on ...

The diagram illustrates what could happen to ... Darwin's drawings of the different heads and beaks of finches Darwin's observations revealed that the finches had wide variations in their size ...

These findings suggest that, because of the links between beaks and song, an entirely new species of Darwin's medium ground ...