Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Ancient Shrimp-Like Creature Has Oldest Known Circulatory System

sciencehabit (1205606) writes | about 7 months ago

0

sciencehabit (1205606) writes "A 520-million-year-old shrimp-like creature known as Fuxianhuia protensa has the oldest known cardiovascular system, researchers report. It was both modern and unsophisticated. A simple, tubelike heart was buried in the creature’s belly—or thorax—and shot single blood vessels into the 20 or so segments of its primitive body. In contrast, x-ray scans of the specimen revealed profoundly intricate channels in the head and neck. The brain was well supplied with looping blood vessels, which extended branches into the arthropod’s alienlike eyestalks and antennae and rivaled the complexity of today’s crustaceans. From this Gordian architecture, the researchers can now speculate about the critter’s lifestyle. Its brain required abundant oxygen, so it presumably did a fair amount of thinking."
Link to Original Source

Sorry! There are no comments related to the filter you selected.

Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?