Real-life ‘Very Hungry Caterpillar’ head-butts food rivals out the way — The California Sun

When food is scarce, monarch butterfly caterpillars go from docile to domineering. Pictured, the species in a bucket in a lab scrapping for a scarce form of their favourite food - milkweed

A species of caterpillar gets ‘hangry’ – a cross between hungry and angry – when food is scarce, a new study reveals.  Monarch butterfly caterpillars (danaus plexippus) become aggressive fighters in their quest to eat milkweed – a herbaceous plant that’s toxic to most animals and their favourite food. US researchers found that monarch caterpillars…

Real-life ‘Very Hungry Caterpillar’ head-butts food rivals out the way — The California Sun
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