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Topic: range expansion

Alligators on the beach? Killer whales in rivers?

Alligators on the beach. Killer whales in rivers. Mountain lions miles from the nearest mountain. In recent years, sightings of large predators in places where...

Which trees are at greatest risk of beetle invasion?

Pitch pine forests are at greater risk of attack from the southern pine beetle than forests with a mix of tree species, according to...