These are the winners of the Nobel Prize's goofy parody awards

The Nobel Prizes are given for the scientific breakthroughs that revolutionize their fields.

But some studies are more comical than revolutionary.

That's where the "Ig Nobel" Prizes come in. These awards recognize studies that make people giggle (and then take a second to think about their implications).

Here are the winners of the 25th annual Ig Nobel Prizes, which were announced Thursday night.

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The medicine prize was awarded to two groups who studied the science of smooching.

Two groups of scientists achieved this dubious honor for studying the health benefits and consequences of intense kissing (and other intimate activities). Locking lips with a lover imparts more than passion, they found. Kissing also transferred millions of microbes, which made people less likely to have allergies — as well as a partner's DNA.

The biology prize winner used chickens to figure out how dinosaurs walked.

Chickens are a close relative to the T. Rex, which researchers thought made them a good option for studying how dinosaurs may have roamed the Earth millions of years ago. So, scientists in Chile attached a wooden stick to the tails of chickens to see how the added weight might change how the animals walked. The birds with their centers of gravity shifted toward their rears walked in a similar way to how the researchers think two-legged dinosaurs like T. Rex may have walked.

The physiology and entomology prize went to studies of how badly insect stings hurt in different body parts.

Two brave souls allowed themselves to be stung by insects, for science. Researcher Justin Schmidt developed a pain index for how badly different insect stings hurt ranging from 0 (no pain) to 4 (excruciating pain). And scientist Michael Smith allowed bees to sting him on 25 different parts of his body to find the most painful (nostril, upper lip, and penis shaft) — yikes!