Migrating birds use a magnetic map to travel long distances

Migrating birds use a magnetic map to travel long distances

Birds have an impressive ability to navigate. They can fly long distances, to places that they may never have visited before, sometimes returning home after months away. Though there has been a lot of research in this area, scientists are still trying to understand...
How Wolves Change Rivers

How Wolves Change Rivers

Wolves were once native to the US’ Yellowstone National Park — until hunting wiped them out. But when in 1995 the wolves returned, something interesting happened: the most remarkable “trophic cascade” occurred. The presence of wolves substantially...

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