Ligature Strangulation. Strangulation is that form of asphyxia which is caused from constriction of the neck by ligature without suspending the body. Pulling a U-shaped ligature against the front and sides of the neck while standing at the back can cause death. It is of two types: [1] Strangulation by a ligature, and [2] manual strangulation or throttling.
What are the enemies of the monarch butterfly? The biggest threat to the monarch butterfly are wasps, bees, frogs, and especially people. Insects like to eat the eggs of monarch butterflies.
Monarch butterflies only lay their eggs on milkweed, and caterpillars only eat milkweed. But humans don t seem to like milkweed very much and are cutting it down for various reasons. Sometimes humans cut down milkweed in order to build houses, buildings and streets.