1. The correct answer is YES. I think that evolution is still taking place because evolution never stops at any given time. Galapagos finches are known for their diversity which is remarkable in beaks the way they formed and their functions.
2. Humans are ones who lead in speciation and that we can say that they contribute to speciation. Speciation is termed as the process of evolution by which population evolves to become species.
Some of the geographic modes of speciation in nature are sympatric, parapatric, peripatric, and allopatric.
Speciation can take place in polyploid. For example, doubling of chromosomes number where the result of being immediately reproductively isolated from a population of the parent.