An alga that threatens freshwater ecosystems and is toxic to vertebrates has a sneaky way of ensuring its success: It ...

The conservation of embryonic development across species is of great interest in evolutionary biology. Here, using transcriptome analysis, the authors show that the pharyngula stage of development ...

There are over 500 species of sharks in the world. Though they fit into one animal category, they do have reproductive traits that make it confusing.

Mitochondria are the body's "energy factories," and their proper function is essential for life. Inside mitochondria, a set ...

Brazil's Chamber of Deputies has approved the Senate's substitute text for a bill that would ban the testing of cosmetics, ...

Smithsonian researchers have linked discoveries within Arizona’s Petrified Forest National Park with a previously unknown ...

A collaborative research team from China and Australia has uncovered crucial evidence that places the enigmatic prehistoric fish Palaeospondylus among jawed vertebrates, following the ...

Newly analyzed jawbones from 380-million-year-old lungfish are shedding light on the feeding behaviors of our earliest ...

Greenland sharks live for centuries with slow heartbeats and metabolism. Scientists study their longevity secrets.

Protecting large swaths of Earth's land can help stem the tide of biodiversity loss -- including for vertebrates like amphibians, reptiles, mammals and birds, according to a new study published in ...

Complex neural circuits likely arose independently in birds and mammals, suggesting that vertebrates evolved intelligence multiple times.