The animal kingdom never ceases to amaze with its endless amount of oddball creatures. Some of Mother Nature’s insect creations are downright freaky, not to mention scary, and you’ve probably never heard of many of them.

Scroll through to see some of the weirdest insects on the planet.

This odd-looking beast is called the monkey slug caterpillar and is the hag moth's larval stage. Native to fields and forests of the eastern United States, this creature is unremarkable as an adult, but as a caterpillar, it's a sight to behzzold. It’s covered in stinging hairs that can be irritating.

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The Brazilian treehopper sports oddball appendages on its head that are thought to perhaps deter predators. These pea-sized beauties can be found in Africa, North and South America, Asia and Australia. They feed on plant juices via two sharp, straw-like tubes.

There are 12,500 species in the planthopper family of bugs. The nymph of one of them is dubbed “the white beauty” and sports odd white protuberances—some parts resemble string, others look like optical fibers. These tiny creatures hop from plant to plant, enjoying tasty plant juices.

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Peacock spiders, members of the jumping spider family, are native to Australia. Flashing his bright colors, the male performs an elaborate dance to woo the ladies. The grain-of-rice-sized spiders are venomous, but they're harmless to humans.

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Scorpionflies are neither scorpions nor flies; they’re actually more closely related to fleas. These scary-looking bugs like to feed on dead organisms.

Photography: Wikimedia via Creative Commons Attribution 2.0 Generic license

Floridians may be familiar with the saddleback caterpillar, a colorful, ¾-inch long beast covered in hairs that sting like crazy. The multi-hued “saddle” is thought to be a warning to predators. This guy feasts on common landscape plants such as maple, hibiscus and crape myrtle.

The aptly named man-faced stink bug is found in India and much of Southeast Asia. Like other stink bugs, this weird-looking insect produces a nasty smell if it feels threatened. These guys are about an inch long and you’ll find them in several colors, including deep orange, pale orange, yellow, and cream.

Photography: Pinterest/TøÑy Ğ