Read the publication source and answer the following questions. In order to answer question 3, you will have to google scholar publications on play behavior of other species.
- In the case of Octopus vulgaris, how and why do they use water jets?
- What are the implications of play behavior when you compare Octopus vulgaris with Octopus dofleini?
- Do all taxa play?
- What are the evolutionary implications of your claim?