Researchers have elucidated the evolutionary origins of placodes and neural crests, which are defining features of vertebrates, through lineage tracing and genetic analysis in Ciona intestinalis, a ...

The film discusses the characteristics and classifications of chordates, a group of animals that includes vertebrates and some simpler forms. Key features of chordates include a pharyngeal breathing ...

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 ...

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 ...

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

Q: Have any modern animals adapted to human activity through natural selection? Mike Anglin | Dallas, Texas Human-caused factors have led to anatomical changes in both vertebrates and invertebrates.

A new exhibit at Butterfly Pavilion offers insight into the evolution of its invertebrate residents, as well as humans and other vertebrates. For millions of years, Earth was home to single-celled ...

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 ...

Invertebrates such as spiders and centipedes are underappreciated kings of the jungle, eating a surprising amount of vertebrates in the Amazon, a new study says. Biologists recently documented 15 ...

The design of a protected areas network that contains or represents as many species as possible (maximum complementarity of areas) is a first step toward in situ conservation of species biodiversity.