Study: Why unique finches keep their heads of many colors

There appears to be an underlying selection mechanism at work among Gouldian Finches—a mechanism that allows this species to produce and maintain individuals with red heads, black heads, and yellow heads. Research by scientists ...

New chimpanzee culture discovered

Chimpanzees have a more elaborate and diversified material culture than any other nonhuman primate. Their behavior varies across tropical Africa in a way that does not always correspond to ecology. For instance, only West ...

Genome duplication drives evolution of species

Many wild and cultivated plants arise through the combination of two species. The genome of these so-called polyploid species often consists of a quadruple set of chromosomes—a double set for each parental species—and ...

Natural aphid predators reduce pesticide use

The greater the diversity of crops grown in agricultural landscapes is, the better natural predators of aphids are able to control the pests on wheat fields. This is because a varied landscape provides better living conditions ...

When one reference genome is not enough

Much of the research in the field of plant functional genomics to date has relied on approaches based on single reference genomes. But by itself, a single reference genome does not capture the full genetic variability of ...

Lawsuit aims to block oil drilling on US land in Nevada

Environmentalists have sued a U.S. agency to try to stop it from allowing oil and gas drilling on a vast stretch of federal land in Nevada, where the government is reversing protections put in place nine months ago under ...

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