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Biology

Phenotypic Plasticity in Amphibian Larval Development Under Predator Stress

Quick fact

When predators like dragonfly larvae are present, tadpoles can grow a deeper tail fin and a smaller body within days—changes that make them faster swimmers and more likely to escape—but these same changes make them less competitive for food.

Why this is interesting

Imagine a tiny tadpole that can morph its own body to become a better swimmer just because a predator is nearby. How does it know?