Huge swarms can devour so much in a day that they could cause a hunger crisis.
It's the worst locust infestation Kenya has seen in 70 years.
Watch a car drive into the heart of locust storm.
A small swarm of locusts can devour enough food in a day to feed 35,000 people, according to the UN Food and Agricultural Organization.
When you tempt a locust with some grass, it’ll do whatever you tell it to.