Gathering vision data for hundreds of vertebrates and invertebrates, biologists have deepened scientists' understanding of animal vision, including the colors they see. The researchers determined that ...

Before you submit an error, please consult our Video Help page. Alabama STEM Explorers is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android ...

Go back far enough in our history–maybe about 650 million years–and you come to a time when our ancestors were still invertebrates. That is, they had no skulls, teeth, or other bones. They didn’t even ...

Scientists have long puzzled over the gap in the fossil record that would explain the evolution of invertebrates to vertebrates. Vertebrates, including fishes, amphibians, reptiles, birds, mammals, ...

Peter Contos receives funding from the Ecological Society of Australia. Heloise Gibb receives funding from the Hermon Slade Foundation and the Australian Research Council Many of Australia’s natural ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. When French biologist Jean-Baptiste Lamarck set out to categorize ...

Paleontologists have long suspected that our teeth evolved from bumpy structures called odontodes on the exoskeletons of prehistoric fish—but they didn’t understand exactly what these bumps were used ...

The state fossil of Illinois is a strange creature with stalked eyes and a long nose-like appendage with teeth, dubbed the “Tully monster.” Specimens typically measure just 15 centimeters (about 6 ...