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species

The rapid, unorthodox emergence of a new finch in the Galápagos hints that speciation isn’t rare. New hybrid species may quietly appear and disappear without anyone noticing.
Abstractions blog

New Bird Species Arises From Hybrids, as Scientists Watch

The rapid, unorthodox emergence of a new finch in the Galápagos hints that speciation isn’t rare. New hybrid species may quietly appear and disappear without anyone noticing.

Mitonuclear conflict — a struggle between the genes in a cell’s nucleus and its mitochondria — might sometimes split species in two.
evolution

Genetic Struggles Within Cells May Create New Species

Mitonuclear conflict — a struggle between the genes in a cell’s nucleus and its mitochondria — might sometimes split species in two.

Despite swapping DNA through interbreeding, butterflies and other animals can maintain distinct species.
genetics

As Animals Mingle, a Baffling Genetic Barrier

Despite swapping DNA through interbreeding, butterflies and other animals can maintain distinct species.

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A large new study of ovenbird lineages questions the extent to which competing species push each other to evolve.
evolution

Does Competition Drive Diversity of Species?

A large new study of ovenbird lineages questions the extent to which competing species push each other to evolve.