Caterpillar Eaten Alive By Wasps | Natural World | BBC Earth

Ready to start its transformation into a butterfly. But waiting in the wings is a tiny parasitic wasp looking for somewhere fleshy to lay her eggs. She's watching for the moment when it will finally split its skin and emerge as a chrysalis because that is when she'll make her move. She crawls over the still soft chrysalis and gives it a final examination. Then before its skin has a chance to harden she sticks in her egg tube and pumps it full of eggs. The young wasps will hatch inside the chrysalis and eat the contents so that instead of a cabbage white butterfly bursting forth out will come a multitude of wasps ready to find more caterpillars to infest.