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 ...

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 ...

Invertebrates are dominant species in primary tropical rainforests, where their abundance and diversity contributes to the functioning and resilience of these globally important ecosystems. However, ...

A hundred years since microbiologists first discovered the invertebrate immune system, they are just beginning to understand its complexity. Scientists recently discovered that invertebrates have ...

The findings suggest that the appearance of the vertebrate head skeleton ‘did not depend on evolution of a new skeletal tissue, as is commonly thought, but on the spread of this tissue throughout the ...

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

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 ...