Although the poison dart frog gets its name from the batrachotoxin in its skin, it is not the only animal to contain the toxin, several other species of frog, 2 genera of birds and and unknown number of insects also carry the poison.
Dr. Roth, the Navy surgeon Parker and Knight were speaking to, said he couldn't talk long because he was prepping for an emergency CES surgery. CES stands for Cauda Equina Syndrome, a condition that involves damage to the bundle of nerves at the bottom of the spinal cord.
Most surgeons like to have music on in the background while they are operating.