Answer:
- analyzing their DNA
Step-by-step explanation:
The most helpful technique for assessing the hypothesis would be 'analysis of DNA' as it will assist in testing the validity of the assumption. The examination of DNA of the given two species of animal would help in knowing their traits and if they possess any similarity of a gene that would indicate whether they have any ancestral commonality among them. The results of this analysis would allow reaching a credible conclusion regarding their relation with adequate evidence to substantiate it. Therefore, the study must involve the 'assessment of DNA' to know its truth.