Cassowary foot/Claws Album Nashville Zoo Image 55/225 Mar 31, 2012 15:54 Original Metadata Camera Model:Canon EOS 50D Original Time Taken:Mar 31, 2012 15:54 Shutter Speed:1/160 sec Aperture:f/5.6 ISO Sensitivity:2000 Exposure Compensation:0 EV Metering Mode:Pattern Flash Fired:No Flash Focal Length:250 mm The cassowary is the world's deadliest bird, with a sharp beak and claws. They have been known to kill humans using their inner toe, which is equipped with a long sharp claw.