invasive species

The Argentine black and white tegu can grow as long as 130 cm and eats just about anything (Photograph by Nicole Craine)

The stubborn, scaly, fork-tongued menace plaguing America. (No, the other one.)

Allen Abel takes a trip to Georgia to look for the Argentine tegu. They’re big, fast and have a penchant for eating just about anything.

The urgent fight to save Toronto’s ravines from invasive species

The city’s peerless ravine system, worth billions according to estimates, stirs a deep psychological and emotional connection among locals. Invasive species now pose an existential threat.

Canada should embrace invasive species

Our editorial: Hostility toward foreign flora and fauna has become official policy in many places in Canada. Is there any logic to it?

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Dalhousie project takes aim at invasive species

Aquatron laboratory will test cleanliness of ballast water

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‘Frankenfish’ allegedly shows up in B.C. pond

Evidence has surfaced that the highly invasive “Frankenfish” from Asia has turned up in the B.C. Lower Mainland.