Animals at Nebraska Zoo Help Fight Invasive Trees by Eating What Threatens Their Habitat (Exclusive)

Omaha's Henry Doorly Zoo and The Nature Conservancy have teamed up to tackle the woody encroachment at Folsom Point Preserve.
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Researchers issue warning over troubling discovery in habitat of world's largest lizards: 'Downstream effects'

Even small changes to their conditions can quickly throw everything off. Researchers issue warning over troubling discovery ...