How tiny creatures are reshaping the very rivers they live in

What shapes a river? People typically imagine large-scale processes such as storms and floods or human modifications like dams or fortified banks. But the shape of our rivers today is also a result of the cumulative impact ...

Implanted memories teach birds a song

A father holds up his newborn, their faces only inches apart, and slowly repeats the syllables "da" and "dee." After months of hearing these sounds, the baby begins to babble and gradually "da da da" is refined to the word ...

Sibling rivalries lead to friendly finches

A new study has revealed that growing up with lots of siblings – and fighting over food – makes zebra finches more sociable in later life. In contrast, finches with fewer siblings become pickier about who they hang out ...

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