Lake trout in some northern Ontario lakes aren't as big as they used to be, and a geneticist says it's because of another fish, you likely didn't know was an invasive species. Christian Therrien, a ...

The fragile little fish that swim around in dark tanks in a lab are the last hope for their kind. The lab director who oversees their care, Tien-Chieh Hung, explained that when the Delta smelt ...