Kite kids? Ancient arthropod kept offspring on a short leash – literally.

Aquilonifer spinosus, or 'spiny kite bearer,' had a unique way of keeping track of its children: it tethered them to its body like kites.

|
Courtesy of D. Briggs, D. Siveter, D. Siveter, M. Sutton, D. Legg
Aquilonifer spinosus, the Kite Runner, was an arthropod that lived about 430 million years ago. It carried its young in capsules or pouches tethered to its body.

Scientists have discovered a bizarre, ancient creature with an oddly effective childcare strategy – it carried its young in capsules tethered to its body. 

The 430-million-year-old arthropod, distantly related to lobsters and centipedes, spent its days on the ancient sea floor, trailing its babies along behind its body in kite-like capsules.

Scientists named the arthropod Aquilonifer spinosus, or “spiny kite bearer,” in reference to its appearance and 2003 bestselling novel, "The Kite Runner."

“We have named it after the novel by Khalid Hosseini due to the fancied resemblance of the juveniles to kites,” lead researcher and Yale Peabody Museum of Natural History curator Derek Briggs said in a press release.

The international team of researchers published their discovery this week in the Proceedings of the National Academy of the Sciences.

Researchers found the fossil embedded in volcanic deposits in Herefordshire, England. The half-inch-long creature had 10 offspring tethered to it by long threads.

“As the parent moved around, the juveniles would have looked like decorations or kites attached to it,” says Professor Briggs in the release. “It shows that arthropods evolved a variety of brooding strategies beyond those around today – perhaps this strategy was less successful and became extinct.”

Researchers say that this creature’s childcare strategy was unusual.

“Modern crustaceans employ a variety of strategies to protect their eggs and embryos from predators – attaching them to the limbs, holding them under the carapace, or enclosing them within a special pouch until they are old enough to be released – but this example is unique,” said Briggs.

At first, researchers were not even sure what the pouches were. They theorized that kite-like passengers could be parasites or some sort of hitchhiker, along for the ride. But the pouches were too far from the arthropod’s body to be parasites, and the arthropod had the ability to reject hitchhikers (due to its long front appendages).

By remaining close to their parents, scientists say, the juvenile arthropods were better protected from predators. They weren’t just freeloaders, though. Researchers theorize that the juvenile arthropods were able to acquire their own phytoplankton snacks along the way.

Researchers say this discovery is particularly interesting, because arthropods don’t generally engage in this kind of “brooding,” or childcare, behavior.

Briggs told the Los Angeles Times that while crawfish occasionally tether their young to their limbs, the back-tethered arrangement is unusual.

Researchers used 3D modeling to better understand the tiny fossil.

You've read  of  free articles. Subscribe to continue.
Real news can be honest, hopeful, credible, constructive.
What is the Monitor difference? Tackling the tough headlines – with humanity. Listening to sources – with respect. Seeing the story that others are missing by reporting what so often gets overlooked: the values that connect us. That’s Monitor reporting – news that changes how you see the world.

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.

QR Code to Kite kids? Ancient arthropod kept offspring on a short leash – literally.
Read this article in
https://www.csmonitor.com/Science/2016/0405/Kite-kids-Ancient-arthropod-kept-offspring-on-a-short-leash-literally
QR Code to Subscription page
Start your subscription today
https://www.csmonitor.com/subscribe