The Desert Locust Finds New Feeding Grounds
In The Desert Locust Finds New Feeding Grounds, narrator Sir David Attenborough explains that desert locust eggs can hatch after being in the ground for 20 years. Learn how locusts find new feeding grounds by following the smell of sprouting grass, travel with the wind to find low pressure and rainfall, and use pheromones, or scent messages, to communicate with one another. This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
Lesson Express
Q: How long have the locust eggs been in the ground?
A: The locust eggs hatch during the right conditions after being in the ground for 20 years.
Q: How do the locusts communicate with each other?
A: The adult locusts release pheromones which tell the other locusts when it’s time to move to a new location.
Q: Why does flying with the wind help the locusts?
A: If they follow the flow of the wind, they are heading toward areas of low pressure where more vegetation grows.
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