Fish Eggs Eaten by Birds May Survive After Being Excreted and Establish New Populations
Updated: Apr 11
Many lakes, ponds, and wetlands are not directly connected by waterways, yet they often contain the same or very similar fish species. This pattern has puzzled biologists for a long time: how do fish manage to cross land and colonize new water bodies? One frequently suggested explanation is that fish eggs adhere to the feet or feathers of waterbirds and are carried to other aquatic habitats. However, direct evidence supporting this idea has remained extremely limited, leaving it largely as speculation.
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