By Molly Michelson In ecosystems, every organism plays a part. From the smallest microbe to the fiercest predator to the tallest tree, each species contributes to making its community healthy. But this role isn’t always obvious. Take the colorful toucan and the palm tree Euterpe edulis in the Brazilian rainforest. Scientists have long understood that […]
Posts Tagged ‘beaks’
For song sparrows, beak size does matter.