An “orientation sphere” visualization for examining animal head movements oleh Rory P. Wilson, Hannah J. Williams, Mark D. Holton, Agustina diVirgilio, Luca Börger, Jonathan R. Potts, Richard Gunner, Alex Arkwright, Andreas Fahlman, Nigel C. Bennett, Abdulaziz Alagaili, Nik C. Cole, Carlos M. Duarte, David M. Scantlebury