FREE LAND—Rose Wilder Lane—Longmans, Green ($2.50).Few readers remember the pioneer farmers of fiction. For one novel of the calibre of Elizabeth Madox Roberts' The Time of Man, ...

FIGURE The two species and their habitats at the study site in Ecuador (Photos by J. Nowakowski) ... Human-made landscape promotes coexistence of two normally separated Andean warblers.

In a paper published today, Nov. 28, in the journal Science, an international team of researchers from the U.S., Kenya and the UK provide the first direct evidence of two different ancient human ...

Two species of ancient human relatives crossed paths 1.5 million years ago. Fossilized footprints in Kenya captured the moment, according to a new study.

About 1.5 million years ago, individuals of two different species in the human evolutionary lineage trudged on a muddy lakeshore in northern Kenya, leaving behind intersecting trackways alongside ...