The team studied killifish populations in environments with varying predator densities and focused on their spawning behavior. The study found that killifish can rapidly evolve their reproductive methods to improve survival. Specifically, the fish changed their spawning methods depending on the presence of predators. As such, the scientists observed significant differences in hatching and fry growth rates between killifish living in predator-rich and predator-free environments.
Source: Ferra
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