Related topics: fossil record

Duck species can imitate sounds

That a parrot can copycat sounds is nothing new. But vocal learning is not common in animals. Researcher Carel ten Cate of the Institute of Biology Leiden (IBL) of Leiden University has now discovered a duck species that ...

Sticky toes unlock life in the trees

Many lizards are phenomenal climbers. Their sharp, curved claws are ideal for clinging to tree trunks, rocks and other rough surfaces. However, in the precarious world of tree tops—filled with slippery leaves and unstable ...

How a butterfly tree becomes a web

Evolution is often portrayed as a tree, with new species branching off from existing lineages, never again to meet. The truth however is often much messier. In the case of adaptive radiation, in which species diversify rapidly ...

Scent of a species: The origins of the apple fly

Apple flies have fascinated scientists right from the mid-19th century, as they are a captivating example of speciation, the beginning of a new species. Correspondence between Charles Darwin and Benjamin Walsh, who observed ...

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