Since the last unit we covered included animal development, I have been doing a little outside reading and came across this awesome article. Scientists have discovered the oldest fossilized evidence of dinosaur embryos. There are many difficulties associated with dinosaur embryos because as you know, dinosaurs laid eggs. There are many examples of fossilized eggs, but being able to find remnants of the actual embryo is extremely rare. This discovery is helping scientists trace the developmental pathways back to some hundreds of millions of years. Here’s the link if you’re interested!