If you're afraid of insects, Australia is unlikely your dream destination. The flying and crawling beasts that live there get huge as can be. But have you ever wondered what makes them such? Warmth plays a part in insect growth, but it's not the only factor at play. The warm, wet environment creates the perfect conditions for an all-you-can-eat insect buffet, which allows insects to grow and thrive over time. Let's see what else makes them grow so big

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