Stingrays will not attack unprovoked but they are one of the few megafishes that pose a real danger to humans. Each ray has a deadly barb at the base of its tail. Coated with poisonous mucus, this large venomous stinger can be 28-38 cm long.
Much like a hunting arrow, it easily penetrates human skin and even bone, introducing toxins to the victim's wound strong enough to knock out an adult human.
This species is ovoviviparous, which means it bears live young. The mother carries her young inside her body, each nourished by egg yolk. Babies are born with a mucous plug at the end of their barb to protect the mother during birth!