Some 25 species of fossil fishes are often found with stomach contents preserved, enabling paleontologists to study predator-prey relationships in this ecosystem.
During the decades in which this predator-prey relationship has been studied, the wolf and moose populations have grown and shrunk in response to each other.
And by situating that story among animals -- who already have natural, antagonistic predator-prey relationships -- it can explore that dynamic without feeling preachy.
By studying regional differences in rattlesnake venom, researchers can better understand the evolution of predator-prey relationships and work to create more effective antivenom.