Citations:necking

English citations of necking

WP article on giraffe has a section on necking including the following citation: {{Cite journal|author=Coe, M. J.|year=1967|title='Necking' behavior in the giraffe|journal=Journal of Zoology|volume=151|issue=2|pages=313–21|doi= 10.1111/j.1469-7998.1967.tb02117.x}}