Weird chromosome may have spurred evolution of thousands of songbirds | New Scientist

Songbirds appear to have an extra chromosome in cells involved in sexual reproduction. The extra DNA could help explain why there are so many songbird species

Source: Weird chromosome may have spurred evolution of thousands of songbirds | New Scientist

Climate policy implications of nonlinear decline of Arctic land permafrost and other cryosphere elements | Nature Communications

Article

Source: Climate policy implications of nonlinear decline of Arctic land permafrost and other cryosphere elements | Nature Communications