Entertaining, daring and educational Steve Irwin, the Crocodile Hunter, was killed on Sunday by a Stingray barb that entered his chest and punctured his heart.

Irwin was killed by a stingray barb to the heart on Batt Reef, off the remote resort town of Port Douglas in northeastern Queensland state, his wildlife park Australia Zoo said in a statement.

Crew members aboard Irwin’s boat, Croc One, called emergency services in the nearest city, Cairns, and administered CPR as they rushed the boat to nearby Low Isle to meet a rescue helicopter. Medical staff pronounced Irwin dead a short time later, the statement said.

Irwin is survived by his wife and two kids.

He is survived by his American wife Terri, from Eugene, Ore., and their daughter Bindi Sue, 8, and son Bob, who will turn 3 in December.

The couple met when she went on vacation in Australia in 1991 and visited Irwin’s Australia Zoo; they were married six months later. Sometimes referred to as the Crocodile Huntress, she costarred on her husband’s television show and in the 2002 movie, “The Crocodile Hunters: Collision Course.”

More about Stingrays from Wikipedia:

Their stinger is a razor-sharp, barbed or serrated cartilaginous spine which grows from the ray’s whip-like tail (like a fingernail). It is coated with a toxic venom. This gives them their common name of stingrays, but that name can also be used to refer to any poisonous ray.

Dasyatids (Stingrays) do not attack aggressively, or even actively defend themselves. When threatened their primary reaction is to swim away. However, when they are attacked by predators or stepped on, the barbed stinger in their tail is mechanically whipped up, usually into the offending foot; it is also possible, although less likely, to be stung “accidentally” by brushing against the stinger. Contact with the stinger causes local trauma (from the cut itself), pain and swelling from the venom, and possible infection from parts of the stinger left in the wound, as well as from seawater entering the wound. It is possible for ray stings to be fatal if they sever major arteries in the chest or pelvic regions, or if the wounds are improperly treated.