Supplementary video files in support of the publication: Bontrager et al. Ritualistic male-male combat of the northern king cobra (Ophiophagus hannah) in Thailand We provide video evidence of 2 comb
Taxon exclusion is the number one problem currently vexing paleontology. The search for pterosaur, turtle, bat, snake, whale, reptile and tetrapod ancestors continues to unnecessarily befuddle paleont
