Bamboo sharks open their mouths widely and quickly and generate suction to slurp up prey. They then shrug their shoulders in order to generate additional suction in order to swallow their food into the digestive tract. – WTF Fun Facts
Source: Watch how this shark shrugs its shoulders to eat – Futurity
Rhiley Morrison, 12, swallowed 54 magnetic balls to see if he could get metal to stick to his stomach and what they looked like when he went to the toilet. He survived after six hours of life-saving surgery and two weeks in the hospital. – WTF Fun Facts
Source: Boy, 12, has six hours of life-saving surgery after swallowing 54 magnets | Metro News
The freshwater African tigerfish (Hydrocynus vittatus) is one of the only fish with the ability to propel itself out of the water and capture flying birds. – WTF Fun Facts
Source: https://www.businessinsider.com/african-tigerfish-caught-eating-birds-in-flight-2014-1