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 ...

Show stock Zebra and Bengalese finches are relatively inexpensive to purchase which makes them an ideal choice for beginners in the hobby of bird keeping and breeding. The Zebra Finch Society has ...

Breeding male: unmistakable ... The male is unlike any other finch in North America; the Wilson’s warbler is the only other bright yellow species with a black cap, but it does not have the ...

There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...