The most successful animals on Earth
The most successful animals on Earth: there are roughly one million described insect species, and scientists estimate 5–10 million may exist. More insect species than all other animal groups combined. Why so many? Small body size means less food needed, fast reproduction with many offspring, flight allows reaching new habitats, and the exoskeleton is incredibly versatile.
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Does your child know which group of animals has more species than any other on Earth — and can they explain why insects are so incredibly successful?
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Curriculum alignment
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