Spending time behind prison walls isn't a voluntary choice for most who find themselves in such uninviting confines. But for French photographer Christophe Negrel it was a calling he couldn't resist.

I've written before about the evolutionary arms race between brood parasites (who lay their eggs in the nests of other birds, leaving them to raise their chicks) and their hosts. In these systems, ...

Over a decade ago, behavioral ecologist Diane Colombelli-Négrel was wiring superb fairy wrens’ nests to record the birds’ sounds when she noticed something odd. Mother fairy wrens sang while ...

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