Pond was the first place in North America where marbled crayfish were found in the wild An invasive species of crayfish that reproduces by cloning itself was discovered last summer in a Burlington, Ont., park — the first time the marbled crayfish has been identified in the wild in North America. Since then, a group of experts has been working to stop the species from spreading. The crayfish are in City View park, on Burlington’s southwest border with Hamilton. Brook Schryer, a member of the working group responding to the detection, told CBC HamiltonRead more