Amidst everyone's confusion, Chen Wen began his operation.
Chen Wen maneuvered the drone over the hippopotamus herd.
The noise of the drone quickly agitated the hippos.
Some adult hippos raised their heads, staring intensely at the drone, making a series of grunting sounds.
Along with the noise, water splashed around their nostrils, as if they were spraying water.
Great, they're on alert now!
Excitement flashed in Chen Wen's eyes.
He knew the hippopotamus herd had been affected by the noise of the drone.
Now, it's time to provoke them.
Provoking hippos is something most people should never try or learn to do, as it's purely courting danger.
Hippos look clumsy and stupid, and their name doesn't suggest they're anything threatening.
But in reality, this mammal, ranking among the top five in terrestrial size, is quite ferocious!
Their incisors extend forward like shovels, growing over fifty centimeters, and weighing four or five pounds.
