Estimating divergence dates from phylogenetic trees can present some challenges like a steep learning curve with new methods and limited available software and suitable datasets, but it also provides rewards like a better understanding of phylogenetic methodology, adding a new dimension to analyses, and addressing interesting evolutionary questions, as demonstrated by the radiation of modern birds.

1. Estimating Divergence Dates
Some practical problems:
- Can be a steep learning curve
- New methods outstrip supply of software
- Suitable datasets hard to come by
Some rewards:
- Gain a better understanding for phylogenetic methodology
- Add a new dimension to your analyses
- Address some really cool questions!