How a small fish coped with being isolated from the sea

The last ice age ended almost 12,000 years ago in Norway. The land rebounded slowly as the weight of the ice disappeared and the land uplift caused many bays to become narrower and form lakes.

Ultraviolet light helps marine animals to tell the time of year

Most organisms on Earth depend on the energy from the sun. Sunlight is also an important coordinator of life's timers. Animals take important cues for proliferation, activity, feeding, or sleep from changing light conditions. ...

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