Latest Chordate Stories
Lamprey — slimy, eel-like parasitic fish with tooth-riddled, jawless sucking mouths — are rather disgusting to look at, but thanks to their important position on the vertebrate family tree, they can offer important insights about the evolutionary history of our own brain development.
An international team of paleontologists has published new research in the journal Nature revealing that the human skeleton did not evolve from ancient predatory fossil fish, as previously believed.
Scientists have unearthed a strange phallus-shaped creature from the 505 million year-old rock layers in the Burgess Shale fossil beds.
The origin of the exquisitely complex vertebrate brain is somewhat mysterious.
525-million-year-old discovery of 'feathered helmet from beyond the clouds'.
An international team of scientists including Albert Poustka from the Max Planck Institute for Molecular Genetics in Berlin has discovered that Xenoturbellida and the acoelomorph worms, both simple marine worms, are more closely related to complex organisms like humans and sea urchins than was previously assumed.
Two groups of lowly marine worms are related to complex species including vertebrates (such as humans) and starfish.
Genetic analysis of an obscure, worm-like creature retrieved from the depths of the North Atlantic has led to the discovery of a new phylum, a rare event in an era when most organisms have already been grouped into major evolutionary categories.
Sea Pork (Aplidium californicum) is a species of sea squirt (tunicate) in the Polyclinidae family. It is quite common on the west coast of North America from British Columbia to Baja California, and the Galapagos Islands. It is found in the intertidal zone and at depths down to 280 feet. This is a compound tunicate forming sheets, mounds, or slabs on rocks and other hard substrates. It is jelly-like in consistency, and is 0.4 to 1.2 inches thick. It is shiny yellow, orange, reddish-brown...
- The act of burning, scorching, or heating to dryness; the state or being thus heated or dried.
- In medicine, cauterization.