genetically

Scientists work to stop self-cloning crayfish in Burlington, Ont., pond after 1st detection in Canada

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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 … Read more

Foul-smelling ginkgo seeds wreak havoc after city plants female tree in error

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When the borough of Saint-Léonard planted a ginkgo tree on Dino Delisi’s lawn, he liked the distinctive, fan-shaped leaves and its bright yellow colour in the fall. But his early admiration for the tree is long gone. About five years ago, he noticed what looked like gumball-sized fruit growing on the branches and each season, … Read more