Scientists unveil secret to strength in locust wings

The video explains how locusts primarily use their hind wings for flight. The durability of their wings is attributed to a grid-like structure formed by longitudinal and cross veins. Cross veins play a crucial role in inhibiting crack propagation, although increased tension can lead to crack development. Microscopically, longitudinal veins have elliptical cross sections, while cross veins exhibit an emulated pattern, enhancing wing durability by up to 50%.

What primarily powers the flight of locusts?

• Tail

• Body

• Hind wings

• Fore wings

What is the role of cross veins in locust wings?

• They inhibit crack propagation

• They increase weight

• They reduce flexibility

• They enhance color

What happens when more tension is applied to a crack in locust wings?

• The crack heals

• The crack stops

• The crack changes direction

• The crack continues to propagate

How do longitudinal veins differ microscopically from cross veins?

• They have a zigzag pattern

• They have elliptical cross sections

• They have a linear pattern

• They have a circular pattern

By how much do cross veins boost the durability of locust wings?

• 50%

• 40%

• 30%

• 20%