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 ...

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 ...

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, ...

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 ...

A 3,500-year-old suit of Mycenaean bronze armor from the Greek village of Dendra may have been used in battle, not just for ceremonial purposes as previously thought. One of the oldest known suits of ...