Darwin’s finches and evolution

The actual study is intriguing. But the summary here is a quicker and easier read. 

Essentially, the researcher found that finches evolved into new species in a very short amount of time!

The article says this:

This study provides critical evidence that ecological factors, such as droughts that alter beak shape, can indeed drive the emergence of new species by changing how birds communicate and recognize one another. 

For those of you who don't believe in evolution, here's an example of it happening in our world. 

https://www.earth.com/news/finch-beaks-and-bird-songs-a-new-story-of-evolution/