Fish eggs can hatch after being eaten and pooped out by ducks
In the lab, only a few carp eggs survived the dangerous trip through birds’ innards
![Mallad ducks fishing](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/06/062620_cw_carpduck_feat.jpg?fit=1028%2C579&ssl=1)
Mallard ducks that were fed fish eggs in the lab pooped out a few viable eggs. If fish eggs survive similarly in nature, this mechanism may contribute to the spread of invasive fish.
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