In the 20th century, animals such as mules and ligers that had parents of different species were considered biological flukes, but genetic sequencing is beginning to unravel the critical role of hybridization in evolution.

Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.

A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.

A parasitic worm accumulates epigenetic DNA tags over its lifetime.  

Neanderthal extinction; eradicating polio; virus takes down massive algal bloom; receptor behind the hummingbird’s sweet tooth; legal threat for PubPeer; price tag of scientific fraud

LIGHTING THEIR LOCATIONS:© 2002 Cold Spring Harbor PressImmunolocalization of epitope-tagged proteins. (A-E) represent cells containing HAT-tagged proteins stained with the DNA dye, DAPI, and a monoclonal antibody against hemagluttinin, α-HA. At right the images are merged. (F-J) indicates cells carrying V5 tagged proteins. The bar equals 2 μm.Aliens sifting through the remains of a lost human civilization might puzzle over the function of a ladle. But if found in a room associate

The genomes of two species of water bears reveal clues about how they persist in extreme conditions, yet don’t resolve the animals’ debated evolutionary story.

Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.

Biology happens on many levels, from ecosystems to electron transport chains. These tools may help spur discoveries at all of life's scales.

The COVID-19 pandemic is still with us. Biomedical innovation has rallied to address that pressing concern while continuing to tackle broader research challenges.