Sweet and tart taste, seeds everywhere you bite. What fruits have these features to them? You probably thought some type of berry, if so you were right because there are some super ways to compare and contrast blackberries and raspberries! To begin, there are many ways that raspberries and blackberries are similar. One way raspberries and blackberries are alike is they are both bumpy on the outside. Another comparison they both have is they are both types of berries. Raspberries and blackberries also have the same shapes as each other. Another comparison between raspberries and blackberries have their seeds on the outside of them. They are both technically considered fruits as well. Blackberries and raspberries grow on bushes with thorns