In 2013, the oncilla (Leopardus tigrinus), a species of small spotted cat from the Americas, was split into two species: the northern tiger cat (Leopardus tigrinus) and the southern tiger cat ...

A new theory by University of Alaska Fairbanks scientist Gunther Kletetschka argues that time comes in three dimensions rather than just the single one we experience as continual forward progression, ...

The Universe could be twice as old as current estimates, according to new research from the University of Ottawa that challenges the dominant cosmological model and resolves the ‘impossible early ...

Pre-contact Central and South American dogs (Canis familiaris) — all dogs preceding contact with European settlers — descended from a single maternal lineage that diverged after dogs entered North ...

The last universal common ancestor (LUCA) is the hypothesized common ancestor from which all modern cellular life, from single celled organisms like bacteria to the gigantic redwood trees — as well as ...

Space-based X-ray observations of hundreds of galaxy clusters suggest that the Universe may be different depending on which way astronomers look. The study appears in the journal Astronomy & ...

Pudella carlae is the first living cervid species described in the 21st century and the first from the New World in over six decades. The newly-described deer species, Pudella carlae, belongs to the ...