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Most speciation events probably occur gradually, without complete and immediate reproductive isolation, but the full extent of… Expand The evolutionary importance of hybridization and introgression has long been debated. Hybrids are usually rare and unfit, but… Expand Climate changes have profound effects on the distribution of numerous plant and animal species(1-3). However, whether and how… Expand Speciation is generally regarded to result from the splitting of a single lineage. An alternative is hybrid speciation… Expand The outer surface of the facet lenses in the compound eyes of moths consists of an array of excessive cuticular protuberances… Expand Establishing patterns of movement of wild animals is crucial for our understanding of their ecology, life history and behavior… Expand There is growing concern about increased population, regional, and global extinctions of species. A key question is whether… Expand Habitat degradation and climate change are thought to be altering the distributions and abundances of animals and plants… Expand Leaves normally release small quantities of volatile chemicals, but when a plant is damaged by herbivorous insects, many more… Expand The neotropical Heliconius butterflies are famous examples of Müllerian mimicry, due to the diverse array of shared, brightly… Expand