One of the most damaging invasive species in the oceans has breached a major barrier – the Amazon-Orinoco river plume – and is spreading along Brazil’s coast. Scientists are trying to catch up.

Don't freak out if you happen to see a humongous yellow and black Jorō spider. They're "really more afraid of you than the reverse."

Native plants help damaged landscapes by stabilizing soil, fighting invasive species and sheltering pollinators. Two horticulture experts explain what they’re doing to help develop new seed sources.

Invasive species cause billions of dollars in damage across the US every year. Hikers and backpackers can take simple steps to avoid spreading seeds and making the problem worse.

They’re beautiful in bloom, but Callery pear trees crowd out native plants and turn productive open land into woody thickets.

Once confined to the Canary Islands, noble false widow spiders are casting their web worldwide.

New research examines the effects of reptile loss on Caribbean islands. The top villain in the story: the mongoose.

Researchers in Florida want help finding brown basilisk lizards, are also called "Jesus lizards" because they can sprint across water.

Lake Powell’s existential crisis is a unique opportunity to save a treasured landscape.

The ways eastern fence lizards have changed in response to red imported fire ants demonstrate how species can adapt to survive the presence of invasive predators.