Chewing Leaves

Left: Feeding Grasshopper
Upper Right: Mandible
Lower Right: Labrum
Note how the labrum holds the leaf. The mandible has sharp teeth for fracturing leaves. The labrum has a notch (bottom) for holding a leaf

Grasshoppers eat plant leaves by biting off pieces small enough to ingest. Chewing leaves involves complex physical properties of both the grasshopper mouthparts and the leaf.

When a grasshopper or a person chews off a piece of leaf, the leaf must fracture. Leaves can resist fracture by…

Source: Living With Insects Blog

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