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cold water fish climate impacts

Cold water fish can adapt to climate change by breeding with warm water relatives

New research suggests an evolutionary shortcut to adaptation: breed with closely related species that can better stand the heat.

Hundreds of lakes in U.S., Europe are losing oxygen

Hundreds of lakes in U.S., Europe are losing oxygen

Oxygen levels have dropped in hundreds of lakes in the United States and Europe over the last four decades, a new study found.

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