![National Aquarium on Twitter: "😮🐡 When threatened, spotfin porcupinefish inflate to brandish their sharp spines! 📸: @gavinontherocks on Instagram… " National Aquarium on Twitter: "😮🐡 When threatened, spotfin porcupinefish inflate to brandish their sharp spines! 📸: @gavinontherocks on Instagram… "](https://pbs.twimg.com/media/DvWiW_CVYAEMOxy.jpg)
National Aquarium on Twitter: "😮🐡 When threatened, spotfin porcupinefish inflate to brandish their sharp spines! 📸: @gavinontherocks on Instagram… "
![Pufferfish Video Goes Viral Because It Bursts Everyone's Strange Belief About How They Inflate | IFLScience Pufferfish Video Goes Viral Because It Bursts Everyone's Strange Belief About How They Inflate | IFLScience](https://cdn.iflscience.com/images/3d1ba117-06fb-5df0-8ca9-e8d1fbb47071/default-1507550614-cover-image.jpg)
Pufferfish Video Goes Viral Because It Bursts Everyone's Strange Belief About How They Inflate | IFLScience
![Hedgehogs can inflate from "balloon syndrome". To allow their spines to curl up around their bodies, they have a lot of room under their skin. If air gets in and keeps getting Hedgehogs can inflate from "balloon syndrome". To allow their spines to curl up around their bodies, they have a lot of room under their skin. If air gets in and keeps getting](https://i.redd.it/lzrc19rwsu851.jpg)