# data[].attributes.body
There was a drought on the island from 1977 to 1978.  Since there was no rain the population decreased.  The average rainfall during the drought was only 20 mm, before the drought the average rainfall was 422 mm of rain, and after the drought there was 540 mm of rain.
Found in the data set.

# data[].attributes.body
There was a drought from 1977 to 1978, and because of this there was a shortage of the number of Portulaca seed (softer seeds).  Which only left Tribulus seeds left for the birds to eat (harder seeds).
Found in the data set

# data[].attributes.body
The reason why the bird's average beak size increased is because the vast majority of the population died off because they couldn't eat the harder seeds.  The birds with bigger beaks were always there but the other birds all had smaller beaks, that's why the average was lower.

# data[].attributes.body
Since there was little rain the trees that produced the seeds for the medium ground finches didn't get enough water so, they stopped producing seeds.

# data[].attributes.body
Since there was a shortage of Portulaca seeds most of the finches with shorter and thinner beaks starved and died because they couldn't eat the harder tribulus seeds. Some finches could eat the harder seed because they have thicker beaks

# data[].attributes.body
There was a drought on the island from 1977 to 1978. The finches that were left had bigger beaks.  The average beak length before the drought was 10.71mm and the depth was 9.65.  And the average beak length of the finches was 11.61 mm.
Found in the data set.

# data[].attributes.body
Which mechanism of microevolution caused the beak of the medium ground finches population on Daphne Major to increase in size from 1976 to 1978

# data[].attributes.body
Natural selection is the mechanism of microevolution that cause the size of the medium ground finches breaks to increase from 1976 to 1978