In fact, it starts digesting your [frog's] tissue. But strangely, none of your blood is coming out, and indeed “when you slice a larva open you don’t see it full of red blood,” says Gil Wizen, an entomologist at the University of Toronto. What’s probably going on here, Wizen reckons, is the larva is secreting enzymes onto the toad to melt its flesh. “So you can say that the digestion is already beginning before the food enters the mouth,” he says.
The larva begins chewing more, says Wizen, “and what we see is that it sort of tears tissues from the amphibian’s body. After a few hours the amphibian is reduced to just a pile of bones and just a little bit of skin.”
But this was no crime of passion. The larva is more like a serial killer. Over the course of its development, it can take down as many as nine toads, frogs, newts, or salamanders.....
And like a serial killer, its methods grow ever more complex as it matures. The adult beetle ups its game into some seriously sadistic stuff. (read more)