There are so many species of finch--and of many other members of the animal kingdom--because of something called natural selection. Natural selection comes about because of hereditary variations within a population, organisms producing more offspring than can survive, and because these offspring vary in their ability to in turn produce offspring and survive. For example, let's say there was a population of white-coated rabbits living in a woodland habitat. A particular mating between two white rabbits resulted in many white-coated offspring, but a few brown-coated offspring as well. (This is an example of hereditary variation.) Of all the offspring, many die because there are more than can survive, but those that die in greater numbers are white, not brown. This is because a white-coated rabbit is not suited to its habitat; its coat stands out to predators against the brown tones of the woodland. The brown rabbits, however, blend in (called camouflage) and so are not noticed as readily by predators. These rabbits will survive much better than their white siblings, and will go on to produce offspring of their own. Eventually, all or nearly all the white rabbits will be wiped out because their physical traits do not suit their habitat. All that will remain are the brown rabbits and their offspring. Each generation of brown rabbits will pass on their advantageous brown coats to the next... It's rather fascinating. To me, it's a miracle of nature that such hereditary variations occur at all. It's as though nature knows it needs to make changes in its populations and so it does!
There are actually 245 species in this family.
one type is zebra finches
There is not 13 different species of finches, there are one species. There are variations, but still one species. There are 250 different breeds of dogs, but still dog species
Geometric isolation of common ancestral species of finches has led to the development of 14 different species of finches in the Galapagos Island due to the concept of diversification.
The species of finches Darwin found were so varied because they had migrated over time to islands of different vegetation, and they adapted to better suit their new environment. Over time, the finches became so different from each other that they turned into new species.
originated from a common ancestor
There are no varieties of sparrows. There are 245 species of sparrows and finches worldwide.
There is not 13 different species of finches, there are one species. There are variations, but still one species. There are 250 different breeds of dogs, but still dog species
Darwin's Finches
The finches were different species that shared a common ancestor
Geometric isolation of common ancestral species of finches has led to the development of 14 different species of finches in the Galapagos Island due to the concept of diversification.
No, evolution has created different species of finches on the Galapagos Islands. There are 15 different species that are found on the Galapagos islands.
The type of speciation that occurred among the Galapagos Islands finches is called "allopatric" speciation. Allopatric comes from roots meaning "other country". The immigrant finches, and many other birds and animals, were very isolated from other populations of the same species on the individual Galapagos Islands. The finches developed into at least 13 different species of finch on the islands.
He noticed that there were different species of finches.
right
The species of finches Darwin found were so varied because they had migrated over time to islands of different vegetation, and they adapted to better suit their new environment. Over time, the finches became so different from each other that they turned into new species.
new york
Song and appearance both play a role in keeping different species from mating.
Evolution