Environmental stress in evolution can be reframed as a powerful engine of innovation, not simply a barrier to survival.

Feathers are among the most complex cutaneous appendages in the animal kingdom. While their evolutionary origin has been ...

Scientists uncovered a key genetic pathway in the origin of feathers, but they found that evolution is stubborn in turning ...

Research suggests that early macropodoids likely adopted a bounding gait before transitioning to bipedal hopping. Small ...

As the only living macropodoid (the group that includes kangaroos, wallabies, potoroos and bettongs) that doesn’t hop, they can provide a crucial insight into how and when this iconic form of ...

Not every creature is built for peak survival. While some animals have evolved to sprint, soar, or blend into their surroundings, others have developed unusual traits that seem to defy practicality.

Illinois’ commercial fossil trade is alive and well thanks to collectors who are motivated by money, science and the hunt — and who test the outer bounds of legality.

Penn State researchers propose that Earth and life have evolved together in a way that is more typical of life-supporting ...

The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

The rift over evolution and creationism — particularly in classrooms — has never fully been put to rest ... of any theory ...

A new book details how lignin once protected algae from UV radiation, then later in evolutionary time became a structural support for trees.