The eggs of frogs, laid in jelly-like masses in water, which develop into tadpoles.
Compound of 'frog' + 'spawn' (meaning to produce eggs or offspring). The term became standard in English to describe the distinctive gelatinous egg clusters frogs deposit in ponds and streams, each egg surrounded by protective jelly.
Frogspawn looks like clear tapioca pudding floating in ponds, but that jelly does something brilliant—it protects eggs from predators, keeps them from drying out, and creates a tiny greenhouse that warms in sunlight to speed up tadpole development.
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