Shrinking wings, bigger beaks: Birds are reshaping themselves in warming world

Australian birds are changing shape due to rising temperatures. Over 100 species show smaller bodies and larger beaks, aiding heat dissipation. Long-term warming increases beak size, but short-term heatwaves cause both body and beak shrinkage, possibly due to food scarcity. While adaptation is evident, its impact on survival remains uncertain, raising concerns about species unable to adapt.

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