The use of vertebrate animals in Research, teaching, outreach and other activities performed by or on behalf of Purdue University must be guided by the highest ethical standards and adhere to ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

Federal regulators in the United States are pushing harder than ever to reduce and eventually replace animal testing in drug ...

An in-depth analysis reveals that for each identified vertebrate species, there may be two others, nearly identical in ...

Who must apply for vertebrate animal use? All individuals proposing to use live vertebrate animals in their training, teaching or research at Hope College must submit an application to the Hope ...

Paleontologists describe a 255-million-year-old weigeltisaurid fossil that likely glided through the air with the help of expansive winglike membranes Tess Joosse Scientists pulled this weigeltisaurid ...

The aptly named resplendent quetzal is prized for its plumage. Golden poison frogs are popular creatures in the pet trade. Pangolin meat is considered a delicacy, and their scales are used in ...

A harlequin poison dart frog (Oophaga sylvatica) is pictured at the Tesoros de Colombia (Treasures of Colombia) sustainable farm in Nocaima, Cundinamarca department, Colombia, on July 9, 2024.

Most of what we know about ancient extinct animals comes from their bones, since soft tissues don’t usually fossilize well. But now, scientists have discovered the oldest preserved vertebrate brain, ...

The distribution of vegetation is routinely used to classify climate regions worldwide, yet whether these regions are relevant to other organisms is unknown. Researchers have established climate ...