From sensory cues to learned behavior, here's how prey species identify their biggest threats. Click the link to read more.
But in certain cases, evidence suggests that with time, species can learn to thwart new threats. Eastern fence lizards, for example, typically face visually hunting predators such as birds. But invasive fire ants pose a danger the lizards aren’t equipped to avoid. “Most of the time, they rely on their innate defense response, which is to close their eyes and lie really still and blend into the background,” Langkilde says. “That does not work with ants.
Predator-prey relations are complicated, especially when human activity introduces creatures that never should have been in an area. But by studying these interactions, researchers are creating a bit of hope. Learning how animals identify a threat could help scientists deal with non-native predators, Langkilde says: “It can give us some ability to predict the types of invasive species that are most likely to have the biggest impact and figure out where we should focus our efforts and management.
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