The old material borrowed from the Museum and the Institute für Haustierkunde (IFH) in Kiel were prepared taking care that the mandible remained intact and attached to the skull, for these specimens we used the provided information for sex and labeling from the containers of the borrowed material.
For generously providing specimens, we thank M Adams, C Bartlett, G Bellis, K Hill, K Kinser, D Marshall, T McCabe, K Miller, L O'Brien, H Romack, C Simon, M Stiller, G Svenson, M Whiting, M Wilson, S Wilson, and J Zahniser.
Special rooms equipped for teaching and for handling specimens are provided in many museums.
Dissections of human specimens have provided only partial snapshots of the focusing process, while animal research is of limited help because few animals focus the way humans do.
Molluscum contagiosum specimens were provided by a dermatologist.
C. semilaevis (130 145 g) specimens were provided by the Tianjin Haifa Aquaculture Center.
Specimens were provided by the University of Washington Burke Museum and the Louisiana State University Museum of Natural Sciences.
Specimens provided by collaborators or previously deposited at the United States National Museum of Natural History, Smithsonian Institution and at the Harbor Branch Oceanographic Institution were also used for molecular phylogenetic analyses (museum catalog numbers for voucher specimens are provided in Table S1).
Specimens were provided by the National Park Service, the University of Alaska Museum of the North and the Museum of Southwestern Biology.
Tissue specimens were provided by the Gynaecological Oncology BioBank at Westmead, a member bank of the Australasian Biospecimens Network - Oncology.
