About the Authors

Cristian R. Altaba

cristianr.altaba@uib.es

Affiliation Laboratory of Human Systematics, University of the Balearic Islands, Balearic Islands, Spain

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CRA. Performed the experiments: CRA. Analyzed the data: CRA. Contributed reagents/materials/analysis tools: CRA. Wrote the paper: CRA.