The power of pals: Social mammals live longer, suggests new study

Mammals that live in groups may generally live longer than members of solitary species, suggests a Nature Communications paper. The findings are based on an analysis of nearly 1,000 mammals —including the golden snub-nosed ...

Genomic analysis reveals true origin of South America's canids

South America has more canid species than any place on Earth, and a surprising new UCLA-led genomic analysis shows that all these doglike animals evolved from a single species that entered the continent just 3.5 million to ...

Understanding how a cell becomes a person, with math

We all start from a single cell, the fertilized egg. From this cell, through a process involving cell division, cell differentiation and cell death a human being takes shape, ultimately made up of over 37 trillion cells across ...

Study reconsiders early evolution of sea urchins

New insight on the origins and early evolution of echinoids, a group that includes the sea urchins, the sand dollars, and their relatives, has been published today in the journal eLife.

A new molecular family tree of grasses

The evolutionary relationships among grasses—including important crop plants like wheat, rice, corn, and sugarcane—have been clarified in a new molecular study of the grass family tree. Having a clear picture of the relationships ...

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