Superior lake trout fully recovered

Superior lake trout populations have recovered after 70 years of rehabilitation, according to the Great Lakes Fishery Commission.
Ice fishing’s black hole

The process of making an opening in the ice seems to create a black hole that magically sucks things away.
The round goby uncovered: Science behind a freshwater invasion

The round goby is reshaping Ontario’s waterways by outcompeting native species and disrupting ecosystem balance.